WTF? (WHAT’S THAT FISH) (7): THE SOAPFISH

March 4, 2016 by Rolling Harbour

WTF? (WHAT’S THAT FISH) (7): THE SOAPFISH

The WTF? series features some of the stranger fish that inhabit the waters of the Bahamas. Ones that, were you to encounter one on the reef, might make you exclaim “WTF?”. The soapfish Rypticus belongs in the same family as grouper and sea bass. Within the soapfish genus there are quite a few varieties in different shapes, sizes and colours that include several mottled, freckled, spotted and generally blotchy fish. This post features one (or two) of them! Sorry to be lame here and lacking in authority, but having looked carefully online at images of several types of soapfish, I reckon there are 3 candidates. Freckled, I think these are. Enlightenment would be welcome!

Soapfish ©Melinda Riger @ G B Scuba

Rypticus tend to inhabit shallower tropical and sub-tropical waters. They are mainly nocturnal in their habits, feeding at night on small fish, crustaceans and molluscs. The WTF? factor arises from the creature’s oddly truncated shape. If you cover the back end of the fish in the image below with your hand, you might expect the fish to be about the same length again. But no, there’s just the tail to come. It looks a bit cut in half.

Soapfish © Melinda Riger @GB Scuba

DOES THE SOAPFISH HAVE ANY AWESOME POWERS?

I’m glad you asked because in fact it has two. First, these fish respond to threats by secreting large amounts of toxic mucus from their skins. This acts as a defensive barrier to repel predators. Secondly, female soapfish are able to change sex to male. This is not uncommon among fish, and in some (e.g. Clownfish) the change works the other way, male to female. I read a lot about chemicals and gonads in this connection, then decided to spare you the details. So basically, it’s toxic slimy coats and female gender realignment.

Soapfish ©Melinda Riger @ Grand Bahama Scuba

Credits: all photos, Melinda Riger of Grand Bahama Scuba

BURROWING OWLS ON ELBOW CAY, ABACO

March 2, 2016 by Rolling Harbour

BURROWING OWLS ON ELBOW CAY, ABACO

I hadn’t planned to revisit the birds of Elbow Cay so soon (2 days!) after the Key West Quail-Dove post, in which I alluded to another rare and special species there, the Burrowing Owl Athene cunicularia. However, Milton Harris – resident and birder – has already sent me some photos of his recent sighting at the north end of the cay, and they are so great that I am going to get them ‘out there’ (the interweb-cloud-ether-space-thing) right away. Carpe diem.**

“I’m watching you watching me. Don’t think I haven’t seen you…” Burrowing Owl, Elbow Cay, Abaco c (Milton Harris)

When I previously featured the BURROWING OWL, I used my own photos (not taken on Abaco). Click on the link to see them and to get some facts about these cute little birds. I also added reports of two sightings on the mainland in the Cherokee / Little Harbour area late last year. As I wrote then, “on Abaco, this little owl is a rare vagrant, presumably visiting from Florida which has the nearest resident population. There have been few reported sightings; and for ‘The Birds of Abaco’ we were unable to locate a photo taken on Abaco.”

Burrowing Owl, Elbow Cay, Abaco e (Milton Harris)

Here’s a wonderful shot of the bird’s legs and feet. Despite their small size overall, the claws (talons?) mark out this owl as a fearsome predator of small creatures. One with hairy toes, too. Burrowing Owl, Elbow Cay, Abaco b (Milton Harris)

HOW LIKELY AM I TO SEE ONE WHEN STROLLING AROUND ELBOW CAY?

Very unlikely indeed I’m afraid (unless you have been shown roughly where to look), and for 2 reasons. Firstly, the burrowing owl is rated as an uncommon to rare vagrant on Abaco. There aren’t even reported sightings every year. So it’s a question of ‘right place, right time’, with a bit of local knowledge, a lot of luck, and excellent eyesight (see below) – the one positive being that, unlike most owl species, these birds are active during the day as well as nocturnally.

Secondly, even were you to be given the exact location of a recently-sighted owl, it’s still a long shot that you would actually spot it, unless you happened to see it in flight. Otherwise, it will be most likely be sitting completely still on a branch in the coppice, quite well camouflaged, watching you stealthily walk by…

Would you notice this bird in the coppice from 75 feet away? Burrowing Owl, Elbow Cay, Abaco f (Milton Harris)

On the other hand, you could be in luck. Milton got a quick shot at this owl as it flew up onto a shed roof in the sunshine. But the bird knows he’s been seen, and he didn’t stay long… I reckon the one-legged pose is particularly neat! Burrowing Owl Elbow Cay, Abaco (Milton Harris) 2 sm

Burrowing Owl, Elbow Cay, Abaco d (Milton Harris)

BURROWING OWLS ON ABACO

BARN OWLS ON ABACO

** or, as Horace fully wrote, “carpe diem, quam minimum credula postero“; seize the day, don’t place too much belief in the future…

Credits: All photos taken on Elbow Cay (north end), Abaco by Milton Harris – with many thanks for use permission

KEY WEST QUAIL-DOVES ON ELBOW CAY, ABACO

February 29, 2016 by Rolling Harbour

KEY WEST QUAIL-DOVES ON ELBOW CAY, ABACO

Elbow Cay has many reasons to be admired: the historic iconic striped lighthouse, Hope Town’s pretty harbour and surroundings, wonderful beaches, some great places to eat and stay, no cars, the general impression of being a happy and most congenial place to be. To which, may I add, a good place for birding in general and for pinning down a couple of hard-to-find species in particular. Resident and birder Milton Harris has sent me a few photos from his recent outings. There is at least one burrowing owl at the north end of Elbow Cay. These owls are reputedly very rare vagrants on Abaco but recent sightings suggest numbers may be increasing. More of which another time.

The Key West Quail-Dove Geotrygon chrysia is a permanent breeding resident on Abaco, but relatively uncommon. These birds are difficult to find, flighty, and fly fast. They are hard to get a clear photo shot at, and reluctant to pose attractively in the open in good light while keeping still. Sadly, we never got a good clear shot of one to use for ‘THE BIRDS OF ABACO‘. A great one from Nassau, yes, but disqualified from inclusion by location.

Key West Quail-Dove, Elbow Cay, Abaco (Milton Harris) 6a

Milton says he has been seeing KWQBs “at the north end of Elbow Cay off and on for the past year. Normally they flush and fly though the trees at great speed, so I have not been able to get a photo. Today I was creeping through the coppice and one walked out in a clear spot and posed!”

Approximate KWQD location Elbow Cay (north) map jpg

WHAT’S IN A NAME?

Disappointingly little these days. The KWQD originally bred in the Florida Keys and was actually discovered on Key West (incidentally a James Bond location used in ‘Licence to Kill’). Sadly the species no longer breeds in Florida (reasons unknown – all shot, maybe?) and these doves are now found only as vagrants there. I have checked the Bahamas National Trust’s very helpful BNT HUNTERS GUIDE – in the Bahamas, the quail-dove is completely protected and may not be shot or taken at any time [but I have a sneaking suspicion that they would be delicious…]

Elbow Cay: Abaco’s KWQD hotspot (eBird) KWQD hotspot map abaco

SO SHOULD IT BE RENAMED THE ELBOW CAY QUAIL-DOVE?

A nice idea, Elbow Cay being the sole Abaco hotspot for the species over the last 10 years, as recorded on eBird. But in fact the birds are found throughout much of the Caribbean so there will be other contenders for the honour. Probably best left as it is to avoid contention.

Key West Quail-Dove, Elbow Cay, Abaco (Milton Harris) 5a

I always enjoy comparing the ‘real thing’ as you might see a bird in the coppice near you, with the depictions of the bird made by one of the pioneers, Audubon prime among them. Here’s his very charming take on the species. But I agree, it’s not very like the bird you are looking out for…

Key-west Dove (J J Audubon)

Credits: many thanks to Milton Harris for his excellent photos of this tricky bird; hotspot clip from eBird

AMERICAN REDSTARTS ON ABACO: THE DISTAFF SIDE

February 25, 2016 by Rolling Harbour

AMERICAN REDSTARTS ON ABACO: THE DISTAFF SIDE

I have a feeling that people are more familiar with the male American redstart than the female. The male’s striking near-black and orange livery is memorable. The female’s equivalent brown and yellow colour scheme is a little more subtle (or ‘drab’, which is a go-to bird book description where the male of a species is flamboyant; I prefer ‘subtle’ as a politer description). Charlie Skinner managed to get some lovely shots of females in the pines and scrub at the back of the Delphi beach.

American Redstart (f), Abaco 1 (Charles Skinner) American Redstart (f), Abaco 2 (Charles Skinner)

These birds are one of the 37 warbler species recorded for Abaco, where they are common winter residents. Generally they start to arrive in October, and some are usually still around in March. It is believed that the flashing tail-spreading of both sexes, shown in some of these images, acts either to attract insects; or to confuse them in some way. I can’t think how or why. I imagine the tail-fanning also forms part of the redstart courtship rituals. Incidentally (*fun fact alert*) male redstarts are known to raise two families simultaneously, the nests being a convenient distance apart so that his deceit remains his secret.

American Redstart (f), Abaco 5 (Charles Skinner) American Redstart (f), Abaco 3 (Charles Skinner)

This pretty juvenile is impossible to sex at this age. Could go either way. (Photo: Becky Marvil) American Redstart (juv), Abaco (Becky Marvil)

For comparison, the more familiar male (and more brash – typical). (Photo: Gerlinde Taurer) Bahamas-Great Abaco_6374a_American Redstart_Gerlinde Taurer copy

Photo credits: Charlie Skinner, Becky Marvil, Gerlinde Taurer

FRIGATEBIRDS aka MAN-O-WAR BIRDS: TRULY MAGNIFICENT

February 22, 2016 by Rolling Harbour

FRIGATEBIRDS aka MAN-O-WAR BIRDS: TRULY MAGNIFICENT

I have a feeling that today’s header image may be one of the best I have been fortunate enough to be able to use. Certainly in the top ten. This is a male frigatebird (Fregata magnificens) in the breeding season, with his extraordinary inflatable GULAR POUCH fully blown up. He is at his most chest-burstingly dashing, at least to female frigatebirds, and this great capture by photographer Athena Alexander from the excellent blog of JET ELIOT, shows one of the wonders of the bird world. A glimpse of his mate can be seen just behind his head, but frankly he has made the story his own! And just look at the size of his wings. If a bird can steal limelight, he has effortlessly done so.

COURTSHIP DISPLAY

The image below shows the male enacting his courtship display. Jet Eliot describes it thus: “During courtship display this balloon-like sac takes about 20 minutes to fully inflate. It is featherless, scarlet red, and tight as a drum. It’s so big it distorts him. When he’s ready and has a suitable audience of females flying overhead, he points his face skyward and rapidly beats his wings against the balloon, creating a low, booming sound”. The male’s pouch is not entirely inflated. A female is nestled under the his protective wing. Presumably she has been won over and mating will soon occur once the performance ends. Or maybe she’s bored with the whole routine – she looks rather as though she has seen it all before… frigatebird-displaying

magnificent-frigatebird

NESTING

Even on the nest, males are keen to be in the picture. Not for them the ‘absentee father’ role, out fishing the entire day. Instead, they share chick-care duties, looking after the single enormous, fluffy chick. An adult pair stays together for the year, forsaking all other. Chick care takes a long time from egg to fledging and beyond – so much so that frigatebirds only breed every other year, and always produce a single egg. For this reason, habitat destruction of breeding grounds has a far greater effect on population numbers than for birds that breed annually. Magnificent Frigatebird (m) and chick on nest - Athena Alexander / Jet Eliot

magnificent-frigatebird

10 MAGNIFICENT FACTS ABOUT FRIGATEBIRDS

Magnificent Frigatebirds are the largest of several frigatebird species around the world
They are found in tropical and subtropical waters
Females have white fronts that make them easily distinguishable in flight
An adult’s wingspan is 7+ feet, with the largest wing-area / bodyweight ratio of any bird
Frigatebirds can remain in flight and far out to sea for many days
They are KLEPTOPARASITES and will rob other seabirds of their food
Their diet is mainly fish & squid snatched from the water’s surface; also seabird chicks
They nest in colonies, producing a single egg every other season
They don’t actually land on water, as they don’t float; and they are feeble at walking on land
One of the earliest depictions of a frigatebird is by Eleazar Albin in 1737. He was a naturalist contemporary of MARK CATESBY and pre-dated AUDUBON

Frigatebird_Eleazar_Albin_1737

magnificent-frigatebird

NAMING THE FRIGATEBIRD: A POTTED HISTORY

Columbus encountered them on his first voyage in 1492, but knew them by their Spanish name rabiforçado or ‘fork-tail’.
The use of the name ‘frigatebird’ was first recorded in 1667 and referenced the frigate warship, a powerful sea-vessel
‘Man-o-War Bird’ was the name given to the bird by English mariners in the Caribbean, being the colloquial name given by sailors to a frigate.

magnificent-frigatebird

A MAN-O-WAR GALLERY

A female frigatebird hunts for food among the mangroves on Abaco Magnificent Frigatebird.Abaco Bahamas.2.12.Tom Sheley 2

A female frigatebird soars high over Marsh Harbour Magnificent Frigatebird, Marsh Harbour, Abaco - Tom Reed

This male has taken off before his gular pouch has had time to deflate fully Frigatebirds (m) 2 Michael Vaughn

An osprey escorts a female frigatebird from his territory to a different bit of sky… Frigatebird & Osprey Michael Vaughn

Juvenile frigatebird Frigatebird (juv) Michael Vaughn

A fully-inflated male with a droopy one who needs to get started quick if he’s going to get a mate Frigatebirds (m) 1 Michael Vaughn

ARE FRIGATEBIRDS ANY USE TO MAN OR BEAST?

Yes, emphatically so, to man anyway. Mariners through the ages have used frigatebirds as indicators of nearby land – not necessarily visible, but within sailing distance. And fishermen through the ditto have used them as reliable indicators of where fish are to be found. As an example from personal experience on Abaco, going fishing out of Casuarina into the deep waters of the open sea, the sight of high-flying frigatebirds signals ‘get ready to fish’. They are scouting around for fish, and so are you. But they know where the fish are. Follow them and you ~~will~~ may be rewarded. Because where there are fish for seabird predators, there are fish for the large fish predators – mahi mahi, tuna and wahoo, for example. This is not my main type of fishing, but each time we have been out in those waters – with the Delphi Club often a still-visible speck on the horizon – the frigatebirds have led us to good catches of mahi mahi (= dorado or ‘dolphin’). Last year, under the watchful gaze of the frigatebirds, in a heart-stopping moment I jumped a wahoo. If that sounds slightly rude, it isn’t – and I didn’t catch it anyway. It just leapt vertically right out of the water without taking the goodies…

STOP PRESS Cheryl Wile Ferguson sent me a great photo of a female MF being sociable with humans in the Galapagos. She hitched a ride for 2 hours during a sea crossing… Magnificent Frigatebird (f) hitching a boat ride (Cheryl Wile Ferguson)

Audubon’s Magnificent Frigatebird Audubon Frigatebird

Credits: first and foremost to Athena Alexander and Jet Eliot for use permission for images 1 – 3 (taken on Galapagos) and much invaluable info; as ever to Tom Sheley (4), Tom Reed (5) and Michael Vaughn (6,7,8,9) for their photos; Cartoon from Birdorable; other images open source; magpie pickings for facts and figures; and some limited personal experience (regrettably but unsurprisingly all my photos of frigatebirds flying, diving, triumphantly catching fish etc are too crap to use)

ABACO’S MAJESTIC SUMMIT (134 ft asl) : ABACO LANDMARKS (2)

February 19, 2016 by Rolling Harbour

ABACO’S MAJESTIC SUMMIT (134 ft asl) : ABACO LANDMARKS (2)

The header photograph is in fact nothing to do with Abaco. Apologies for any confusion. You can put away your ice axe, crampons or skis. It’s the Matterhorn, towering over the border of Switzerland and Italy, complete with high altitude, year-round snow and sub-zero temperatures. Abaco has its own skiing, of course, but solely of the watery sort.

I was curious as to the exact location of Abaco’s highest point. There are a couple of rocky hills in the pine forests of South Abaco that I thought might be candidates. All sources I checked agreed that the altitude is a dizzying 134 feet, with some equating that with 40 metres and others with 41. It would be nit-picking to use the straight conversion of 40.8432 metres. I am that nit-picker.

A site called PEAKBAGGER is useful for such queries. Click on the link and it takes you to the Abaco entry; elsewhere on the site there is a mass of remarkable worldwide altitude information that you could easily spend an hour or 2 investigating.

EIGHT ESSENTIAL ABACO SUMMIT FACTS TO ASTOUND YOUR FRIENDS

Elevation: 41 meters / 134 feet
Name: “Unnamed High Point” [according to John Bethel, it is known locally as ‘Pidgeon Hill’]
Latitude/Longitude: 26° 34′ 6” N; 77° 8′ 14” W 26.568399, -77.137319
3rd highest point in the Bahamas
54th highest point in the Caribbean
1014th highest island point in the world
Nearest high point is on Eleuthera
No ‘ascents’ by registered ‘Peakbaggers’ (this is now on my bucket-list for personal achievements – and it’s an easy start on the way to fame and the conquest of Everest).

THE PRECISE LOCATION OF ABACO’S HIGHEST POINT

Peakbagger’s map places the high point close to the Highway north of Marsh Harbour. Although the land relief shown on the Peakbagger map suggests a higher ridge to the north-west of the red circle, it is in fact only 30 metres high.

Quite a while back I contacted Sandy Estabrook, éminence grise behind the wonderful ABACO ESCAPE website. Within a very short time he got back to me with a clipping from a nautical map, confirming the high point’s location as the one given by Peakbagger.

Far more importantly, it turned out that Sandy actually ascended the summit in 2009 with a friend and without oxygen. His expedition journal states simply:

“Heading South along Queens Hwy, Frank pointed out a hill on the Sea of Abaco side of the road. It had quite some elevation of over a hundred feet or more it seemed. I have not seen a higher place in all of Abaco. And atop the hill was a tower that I was told was built by real estate interests some years ago for prospective clients to view the surroundings. We climbed the tower and I took a couple pics”.

The tower will be familiar to travellers passing by on the Highway. I had read that this was a good place to look out for birds, and had assumed it was some sort of fire-watching tower. The use of a tower to scope out land for development is an ingenious one, but the landscape remains undeveloped. Here are some photos from the vantage point taken on Sandy’s expedition.

View roughly south-east from the tower to Hope Town. The lighthouse is visible to the right.

Looking north-east, with Great Guana Cay just visible on the horizon

The view north(ish) along the ridge, with the Highway snaking up to Treasure Cay

AERIAL VIEWS

WHERE IS BASE CAMP?

Turn east off the Highway and take the spur road to the right. Park at the wider area near the end. Prepare for a scramble up. If there is – or was – a path to the top, I expect it’s overgrown now, unless for some reason it has been cleared. And if anyone undertakes the challenge, it would be fun to post your account of the adventure plus views from the top – especially looking west.

Thanks to Sandy Estabrook and to Peakbagger

This is a rijig of a post I did in 2013, because it fits in with my new ‘Landmarks’ series. Also, I (luckily) have loads more followers these days. If there have been any significant changes to the location, I’d be pleased to hear and amend accordingly. And if there are any other local names for the hill, I’ll add them.

“A PELICAN GOES INTO A LOW DIVE AND…”

February 17, 2016 by Rolling Harbour

“A PELICAN GOES INTO A LOW DIVE AND…”

… is a promising start to a pelican-based variant on the “Man walks into a Bar…” joke. But in fact there’s a serious point to all this, illustrated with a set of Phil Lanoue’s wonderful ‘bird sequence’ photos. The Brown Pelican is a permanent breeding resident on Abaco, not exactly common but locally quite easy to find. For example, certain docks are often used by them as diving platforms as they feed. Sandy Point is a good place for this. At Delphi we see them passing over the bay, flying high with slow, heavy wing-beats, but sadly I have yet to see one fishing off the rocks there.

Brown pelicans feed by diving for fish. By contrast, White Pelicans (a rarity on Abaco) feed in a quite different way. They forage communally and cooperatively by coralling fish and picking them off from the surface or just below it. A quick online search shows very little evidence of white pelicans diving for food or indeed just for the hell of it. But have a look now at a Brown Pelican landing and going straight into a low dive… to catch a meal.**

Brown Pelican 2 (Phil Lanoue) Brown Pelican 3 (Phil Lanoue) Brown Pelican 4 (Phil Lanoue)

I unreservedly recommend Phil’s website HERE for the consistently excellence of his photography, especially his action sequences; and for the way he captures the mood with apposite commentary.

**I completely realise that this is totally lame as the punchline for a bar-room joke

WHITE-TAILED TROPICBIRD: ABACO’S MOST ELEGANT BIRD

February 16, 2016 by Rolling Harbour

WHITE-TAILED TROPICBIRD: ABACO’S MOST ELEGANT BIRD

A competition to decide the most elegant bird found on Abaco (of 350+ recorded species) is a simpler task than it sounds. Colourfulness doesn’t come into (sorry, painted bunting, Abaco parrot & co). Nor cuteness, rarity, popularity and so on. Some birds don’t make the starting line at all (but we love you, ungainly limpkins and raucous clumsy-flying Anis). Best to judge from a different viewpoint: is there one bird that in flight is invariably beautiful to watch, in a way that can make you catch your breath…?

White-tailed Tropicbird, Abaco (Alex Hughes)

The caribbean white-tailed tropicbird (Phaethon lepturus catesbyi) is one of six types of tropicbird found worldwide. It is named after pioneering naturalist MARK CATESBY, who predated John James Audubon. Click the link to find out more about him. Catesby’s depiction (below) of a ‘Phaeton’ must be one of the earliest.

Catesby’s Tropicbird Tropicbird - Mark Catesby jpg

In the Bahamas, tropicbirds are summer resident only and breed on the islands. Abaco is fortunate to have several breeding colonies, not all in remote or inaccessible places. Female tropicbirds lay a single egg directly onto the ground or on rocky ledges and in rocky holes. One might suppose that such limited egg production with a somewhat high-risk nesting policy, coupled with modern problems such as habitat destruction, might affect numbers. However, these fine birds seem to be doing well, and are IUCN-listed ‘Least Concern’.

This tropicbird on Abaco has found a safe place to nest in a rocky hole White-tailed Tropicbird on nest, Abaco (Alex Hughes)

Tropicbirds have a variety of local names in the Caribbean, for example ‘longtail’ and ‘bosun bird’ (after their screeching call). They plunge-dive for fish, but are inexpert swimmers. This is a factor I am prepared to overlook in the elegance contest. They were born to fly high, not to paddle about.

White-tailed Tropicbird, Abaco (Alex Hughes)

THE STORY OF TB THE TROPICBIRD

A couple of years ago, a tropicbird chick was rescued by a dive boat and given to Melissa Maura, well-known for her animal magic, to care for. She nurtured ‘TB’, giving him a soft bed and providing him with a swimming pool. To begin with, it looked as though he might not be able to fly at all, but as he became stronger he started to flap his wings.

White-tailed Tropicbird, Bahamas (Melissa Maura)

Then it was time to go to the beach, get acquainted with sand and sea, and practise flying. I have some pathetic photos of an exhausted TB lying flat out on the sand after his initial attempts to fly. But Melissa and TB persevered with the flying practice and in due course TB began to get the hang of it. Finally, the great day arrived. Melissa and a friend took TB down to the beach and launched him into the air. He took off, flying strongly away, never to return. A moment of triumph mixed with poignance.

White-tailed Tropicbird, Bahamas (Melissa Maura)

You are very welcome to propose a rival in the elegance stakes in the comment box!

Credits: Main photos Alex Hughes; TB images Melissa Maura

White-tailed Tropicbird, Abaco (Alex Hughes)

ECHINODERMS, DOLLAR DOVES & PETRIFIED BISCUITS

February 12, 2016 by Rolling Harbour

Sand Dollar from Abaco containing 5 miniature white doves…

ECHINODERMS, DOLLAR DOVES & PETRIFIED BISCUITS

Echinoderms (Gr. ‘Hedgehog Skin’) comprise a large variety of sea creatures characterised (mostly) by radial symmetry, often five-way. For Abaconians, the most frequently encountered are starfish, sea urchins, sand dollars and sea biscuits. I am going to look at two particular aspects of dollars and biscuits, conscious that my illustrative photos of white objects were stupidly taken against a white background.

DOLLAR DOVES

I’m sure all Bahamians know or are aware of at least one version of the famous ‘Sand Dollar’ poem, in which the various characteristics of the test (the skeleton of the creature) are given religious significance. One verse of the poem may be puzzling: “Now break the centre open And here you will release The five white doves awaiting To spread good will and peace”.

Recently, Senior Granddaughter (10 this week) was looking at some Abaco sand dollars in her unfeasibly huge collection of shells. She picked one up, shook it and it rattled. She said a friend at school had told her that a rattling sand dollar has ‘doves’ inside it, and asked if we could break it open and see. I’ve learnt that it is useless to argue with her – she has the tenacity of a trial lawyer – so we did. This is what we found.

Sand Dollar with a spiky interior like a white cave with stalagmites and stalagtites Sand Dollar Doves (Keith Salvesen) 4

Five white doves (in fact, the separated parts of the creature’s feeding apparatus) Sand Dollar Doves (Keith Salvesen) 1

Two broken pieces showing where the doves are centrally located Sand Dollar Doves (Keith Salvesen) 5

A single dove (best viewed the other way up for full-on doveliness) Sand Dollar Doves (Keith Salvesen) 3

The photo below, from Pinterest, shows the ‘mouth’ with its 5 dove-parts intact, an arrangement called ‘Aristotle’s Lantern’.

PETRIFIED BISCUITS

In common parlance ‘petrified’ is an extreme version of ‘terrified’. Literally, it means ‘turned to stone’ (L. Petrus, a rock). It is descriptive of a state of fossilisation, where an animal skeleton or dead wood or plant matter turns over aeons into stone. Undaunted by her Doves discovery, SG (a most inquisitive girl) also discovered a box containing random stones and fossils. She found these two items:

Fossilised sea biscuits Petrified Sea Biscuit (Keith Salvesen) 1

A closer look at the pair of rocks Petrified Sea Biscuit (Keith Salvesen) 5

The undersides of the fossils above – looking like stones but with some tell-tale small holes Petrified Sea Biscuit (Keith Salvesen) 2

A close-up of the pale biscuit Petrified Sea Biscuit (Keith Salvesen) 6

Sea biscuits as everyone knows them, on the beach at Delphi – skeletons but not yet fossils Sea Biscuits, Delphi, Abaco (Clare Latimer) copy

A ‘modern’ sea biscuit in close-up Sea Biscuit, Abaco (Rhonda Pearce) copy

FUN FACT

Florida has an unofficial but proposed State Fossil, the ‘Sea Biscuit (Eocene Age)’. I didn’t know it before, but it turns out that around 40 States have State Fossils. Whatever next? State Bacteria?

SO HOW OLD MIGHT A PETRIFIED BISCUIT BE?

The fossil biscuits I have looked at, from Florida to Madagascar, are said to come from three specific historic epochs – from the oldest, Jurassic (145m – 201m years ago), to Eocene (34m – 56m) and Pleistocene (0.01m – 2.6m).

HOW DOES THAT HELP ANYBODY? BE MORE PRECISE

By all means. Here is an excellent Geochart that gives an idea of the time span. A Jurassic sea biscuit would be more than 145m years old. So maybe the next plan should be to take the 2 petrified sea biscuits plus SG to a museum to see if we can get an idea of their age… geotimescale

All photos ‘in-house’ except the Delphi biscuits, Clare Latimer & the single biscuit Rhonda Pearce; Geochart to be credited asap, mislaid the source…

“CLEANING UP”: HOW TINY REEF FISH HELP LARGE FISH

February 10, 2016 by Rolling Harbour

“CLEANING UP”: HOW TINY REEF FISH HELP LARGE FISH

A while ago now, I wrote a detailed post about so-called fish ‘cleaning stations’ – the special spots on the reef where large fish can go to have small fish buff up their scales and floss their teeth. You can read all about it HERE.

I have accumulated a number of new photos from expert scuba diver and underwater photographer Melinda Riger that demonstrate this phenomenon. A big fish with a normally voracious appetite will patiently wait while gobies and other small fry go about their work. This often involves actually entering the mouth of the (as it must seem to them) monster to pick the insides and the teeth clean. There is an extraordinary understanding and trust between the species that means during the operation, the little fish are perfectly safe. Here are some examples, of which the very recent header image of a grouper named Arnold is quite outstanding.

Tiger Grouper + cleaner goby ©Melinda Riger @ G B Scuba copy Grouper, Black at cleaning station ©Melinda Riger @G B Scuba copy Tiger Grouper at cleaning station ©Melinda Riger @ G B Scuba copy Tiger Grouper being cleaned ©Melinda Riger @G B Scuba copy

It is not just gobies that attend the fish. Various species of shrimp also volunteer for the job.

Tiger Grouper with cleaning shrimps and goby ©Melinda Riger @ G B Scuba copy Grouper being cleaned ©Melinda Riger @ GB Scuba copy

Groupers are not the only species to make use of cleaning stations. Here is a dog snapper at the same cleaning station as the grouper in the header image. Below is a stingray being attended to.

Dog Snapper at cleaning station ©Melinda Riger @ G B Scuba copy

Southern Stingray with cleaning gobies Stingray, Southern with cleaning gobies ©Melinda Riger @ G B Scuba copy

GRAMMATICAL DIGRESSION There is this ‘thing’ about the correct use of the words ‘fish’ and ‘fishes’ in the plural form. The basic principle is simple: ‘fish’ where you are referring to several of the same species; ‘fishes’ where more than one species is involved. I don’t care. My policy is to use ‘fish’ as the plural on all occasions, so I don’t have to think about it. Pedants, look away now.

TAKEN TO THE CLEANERS

BANDED CORAL (‘CLEANER’) SHRIMP

TIGER GROUPER

BLACK GROUPER

All photos: Melinda Riger, Grand Bahama Scuba

THE ‘THRUSH’ THAT ISN’T: NORTHERN WATERTHRUSH ON ABACO

February 8, 2016 by Rolling Harbour

THE ‘THRUSH’ THAT ISN’T: NORTHERN WATERTHRUSH ON ABACO

The pretty thrush-like warbler Northern Waterthrush Parkesia noveboracensis is a common winter resident on Abaco. Despite the name it’s not a real thrush, but it is larger than most of the compact winter warblers that heed the the migratory instinct that “It’s Better in the Bahamas” and make Abaco their overwintering habitat.

Northern Waterthrush.Bahama Palm Shores.Abaco.1.Tom Sheley

HOW CAN YOU TELL SIMILAR PLUMAGED THRUSHES FROM THESE GUYS?

The simplest rule of thumb is that true thrushes have spotted or speckled chests; whereas waterthrushes have streaked chests. That, and the fact that similar thrush species are generally larger. A number of true thrushes are recorded for Abaco, many quite similar to the waterthrush; but the speckled vs spotted distinction should be your guide. If a sighting is momentary or in bad light, it’s anyone’s guess…

Northern Waterthrush, Abaco (Becky Marvil)

northern_waterthrush_rangemap(1)

APART FROM THRUSHES, ANY OTHER BIRDS I MIGHT CONFUSE IT WITH?

There’s another far less commonly found waterthrush that also overwinters on Abaco – the closely-related Louisiana waterthrush Parkesia motacilla. I have no Abaco photos of one – it really is quite rare – so I’ve had to borrow an open source one. The Cornell Lab explains the differences between the two waterthrushes thus: “Northern usually has stripes on throat, a slightly smaller bill, a thinner and off-white or cream eyestripe that does not extend as far onto the nape, less pink legs, and a more yellowish wash on the underparts”. Maybe one can generalise that the northern is overall a yellower bird, and its legs are more brown than pink.

Lousiana waterthrush – rarer on Abaco than the northern but a potential source of confusion Louisiana_Waterthrush_(Parkesia_motacilla) Magnus Manske : Wiki

WHAT’S THAT POSH TAXONOMIC NAME ALL ABOUT, THEN?

The Mr Parkes in question was Kenneth Carroll Parkes (1922 – 2007), an American ornithologist and Chief Curator at the Carnegie Museum of Natural History, Pittsburgh. The noveboracencis part simply means ‘from New York’ in Latin (novum – new; Eboracum – York); and the -ensis is a common suffix meaning ‘from’. Mr Parkes’s bird from New York.

Kenneth Carrol Parkes Mr Parkes

Northern Waterthrush, Abaco (Bruce Hallett)

Both species have similar habits. For example, on the ground, they tend to walk rather than hop, ‘bobbing’ their butts (technical term) as they go. They forage on the ground for insects, snails and small mollusks etc.

Northern Waterthrush, Abaco 1 (Gerlinde Taurer)

I’m not a huge fan of attempts at phonetic renditions of bird calls – the ‘Did you have a nice day today dear?’ and the ‘I’d like a very big Kalik please’ and so on. But for what it is worth, the song of the northern waterthrush has been interpreted as “a loud swee swee chit chit weedleoo”. This is what is sounds like in real life. Go figure.

Northern Waterthrush, Abaco 2 (Gerlinde Taurer).jpg

Credits: Tom Sheley (1, 2, 8); Becky Marvil (3); Magnus Manske (4); Bruce Hallett (5); Gerlinde Taurer (6, 7); Richard E Webster at Xeno-Canto for the song clip

Northern Waterthrush.Bahama Palm Shores.Abaco.2.Tom Sheley

“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)

February 5, 2016 by Rolling Harbour

“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)

How proud The King would be to know that his name lives on in the form of an attractive though sadly unmusical Bahamian squirrelfish. This little guy is at least 5 years old. What is more, he has lived at the same address all that time, defending it against usurpers and protecting himself from predators in its safe depths. Here is the loveable little Elvis photographed at home between 2012 and 2016 (header image), the master of his own underwater Graceland…

Squirrelfish (%22Elvis%22) ©Melinda Riger GB Scuba Elvis the Squirrelfish ©Melinda Riger GB Scuba Squirrelfish ©Melinda Riger @ GB Scuba

The reason that Elvis has such large eyes is that these fish are mostly nocturnal, and (apart from when Melinda is out with her camera), he and his friends spend most of the day either at home, or in crevices, small rock caves, or under ledges. However, here are a couple of shots of Elvis out and about, enjoying some quality time among the corals.

Squirrelfish (Elvis) ©Melinda Riger @ Grand Bahama Scuba Squirrel Fish ©Melinda Riger @ G B Scuba

ROLLING HARBOUR MUSICAL DIGRESSION

I so wanted to add a specific Elvis catalogue ‘Musical Digression’, but try as I might, there is no title in The King’s discography that has any potential for finny nuance or piscine pun value. However, here’s a track from the now tragically unhip Dire Straits on their follow-up album to the phenomenal ‘Brothers-in-Arms’, the much under-rated ‘On Every Street’. I give you… Calling Elvis, a song that cunningly contains as many titles of Presley hits as anyone could ever wish for.

All images: Melinda Riger at Grand Bahama Scuba; cartoon from a sequence on the excellent BCCR Defenses page – learn about camouflage and other fishy self-protection techniques

Nocturnal squirrelfish checks out a parrotfish’s sleeping arrangements

SMALL ABACO BIRDS TO MAKE THINGS BETTER

February 1, 2016 by Rolling Harbour

SMALL ABACO BIRDS TO MAKE THINGS BETTER

Bad day. I know about random outage outrage and so on, but really… The router died, unmourned. Bought another. Wasted 2 hours trying to make it work. Turns out to be ‘defective’, which is to say broken. Or another B word. Bought another. Almost lost the will to live. I have the briefest window in which to check emails etc before it, too, checks out of the Mac Hotel. The ONLY SOLUTION (apart from Kalik in copious quantities, sadly not available where I am right now), is to look at some pretty birds taken in the gardens round the Delphi Club. Mmmmm. Feeling better now. Deep breaths… and… relax…

Bananaquit, Abaco 1 (Keith Salvesen) La Sagra flycatcher, Abaco 1 (RH) Cuban Emerald, Abaco (Keith Salvesen) Yellow-throated Warbler, Abaco (RH)

All pics by a rather stroppy RH

STOP PRESS Exactly 24 hours after excitedly unwrapping the (second) new router, after a convoluted and Kafkaesque series of phone calls to various techie centres, headily mixed with wine, beer, tears and tantrums, I combined some of the info from each and miraculously the recalcitrant beast sprang to life. For how long, though? Router advice given: $100 ph + exes

GULL-BILLED TERNS ON ABACO

January 28, 2016 by Rolling Harbour

GULL-BILLED TERNS ON ABACO

The gull-billed tern Gelochelidon nilotica had a name upgrade from Sterna nilotica some years ago, and was awarded the honour of its own genus. Let’s be clear at the outset: there’s no such thing as a tern-billed gull. Which slightly lessens the scope for species confusion.

Gull-billed Tern, Abaco (Alex Hughes) 04

For those (me) who need a reminder about the whole family / genus / species taxonomic maze, here is a reminder. The example used is man. Or stickman, anyway. 3958555126_4f85d9fa5b

Gull-billed Tern, Abaco (Alex Hughes) 05

There are 12 species of tern recorded for Abaco. Only one, the royal tern, is a permanent resident. There is one winter resident, the Forster’s tern and there a 6 summer resident terns of varying degrees of commonness. The other four are transient or vagrant, and probably not worth making a special trip to Abaco to find. The GBT is designated SB3, a summer breeding resident that is generally uncommon, though might be more common in particular areas.

TERN TABLE** Tern Species Abaco **I know! Too tempting…

The bird gets its name from it short, thick gull-like bill. It’s quite large in tern terms, with a wingspan that may reach 3 foot. They lose their smart black caps in winter.

Gull-billed Tern, Abaco (Alex Hughes) 03

There are 6 species of GBT worldwide, and it is found in every continent. While many terns plunge-dive for fish, the GBT mostly feeds on insects in flight, and will also go after birds eggs and chicks. Small mammals and amphibians are also on the menu. The header image shows a GBT with a small crab. I imagine they must eat fish. Surely they do? But I have looked at dozens of images online to find one noshing on a fish, with no success. Does anyone have a ‘caught-in-the-act’ photo?

Gull-billed Tern, Abaco (Alex Hughes) 06

All photos were taken by Alex Hughes, a contributor to “THE BIRDS OF ABACO”, when he spent some time on Abaco a while back in connection with the conservation of the Abaco Parrot and the preservation of the habitat integrity of their nesting area in the Abaco National Park

Gull-billed Tern, Abaco (Alex Hughes) 12

CHEROKEE LONG DOCK: ABACO LANDMARKS (1)

January 25, 2016 by Rolling Harbour

CHEROKEE LONG DOCK: ABACO LANDMARKS (1)

Cherokee Long Dock has a significant claim to prominence on an Island that has, with its Cays, a good few docks to admire. The impressive 770 foot wooden dock is the longest wooden dock in the Commonwealth of the Bahamas, as its plaque proudly proclaims. The waters of Cherokee Sound are very shallow in places, and as the tides retreat, so sandbanks appear and the rest is barely covered by the sea. Hence the need arose for a very long dock to serve the very small community of Cherokee.

Cherokee Long Dock, Abaco, Bahamas (Larry Towning 1)

Before the roads were built – in relatively recent memory – Cherokee was an isolated settlement. There was a shortcut connection by boat to a now-abandoned dock at the nearest community, Casuarina, across the Sound. However, non-tide-dependent access from the open sea was vital for supply boats and mail boats. Access to the sea was needed by the fishermen.

Cherokee Long Dock 4 (Amanda Diedrick) Cherokee Long Dock 2a (Amanda Diedrick) Cherokee Long Dock 1 (Amanda Diedrieck) jpg

The plaque documents the history of the dock, the damage inflicted by hurricanes, and the ‘countless hours of labour’ by local people- ‘men, women and children’ – to preserve the dock. Cherokee Long Dock: the plaque (Amanda Diedrick)

Royal terns and other seabirds use the dock to rest; and as a safe place from which to fish Cherokee Long Dock (Velma Knowles)

Cherokee Long Dock 3 (Amanda Diedrieck)

Photo credits: David Rees and his wonderful drone (header); Larry Towning (2, 3); Amanda Diedrick (4, 5, 6, 7, 9); Karen Eldon, Velma Knowles (8); last image from a FB friend with thanks and many apologies – I’ve lost my note of who took it… to be added if possible; short vid from Youtube.

BLUE CHROMIS: BAHAMAS REEF FISH (29)

January 22, 2016 by Rolling Harbour

BLUE CHROMIS: BAHAMAS REEF FISH (29)

The little blue chromis Chromis cyanea will be instantly familiar to any snorkeler or scuba diver on the coral reefs of the Bahamas. These ever-present small fish – 6 inches long at most – are remarkable for their iridescent deep blue colour that flashes as they dart in and out of the coral and anemones of the reef.

Although at first sight this chromis species – one of many – looks blue all over, adults have a black dorsal stripe and black edging to their fins. They make colourful additions to aquariums, though to my mind they look far more attractive nosing about the reefs foraging for the zooplankton upon which they feed (see header image for details…)

The blue chromis was the second fish species I encountered on my first ever reef dive, at Fowl Cay Marine Preserve with Kay Politano. The first fish was the endearingly inquisitive sergeant major with its smart black and yellow stripes which came right up to my googles to eyeball me. I loved that, even though my pitiful swimming technique meant that I had plenty of other distractions, not least remembering to breathe. Air, that is, rather than water.

Chromis_cyanea_(blue_chromis)_(San_Salvador_Island,_Bahamas)

SO JUST HOW BIG ARE THESE FISH, COMPARED, SAY, TO A BLUE TANG?

All photos Melinda Riger of Grand Bahama Scube, except the penultimate by James St John, taken in San Salvador

CRYSTAL CATHEDRALS: ABACO’S ASTOUNDING UNDERGROUND CAVES (6)

January 19, 2016 by Rolling Harbour

CRYSTAL CATHEDRALS: ABACO’S ASTOUNDING UNDERGROUND CAVES (6)

The photos you see in this post were all taken by Hitoshi Miho during an amazing 3 days of diving with Brian Kakuk deep in the pine forests of South Abaco. It’s not the first time they have explored together the wonders that lie beneath those hundreds of acres of pines and scrub; I’m sure it won’t be the last.

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

The most spectacular cave systems are the adjacent Ralph’s and Dan’s Caves. These systems are believed to be linked, and I know Brian has been trying to find where they meet – a difficult and dangerous task carried out underwater many metres below the forest floor, and requiring sophisticated diving equipment and great expertise.

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

The latest 3-day exploration involved 12 dives and nearly 30 hours underwater in Ralph’s Cave. Narrow passages open out into massive caverns filled with wonderful and complex crystal stalagtites and stalagmites formed over eons. I hope you enjoy examples from the ‘Rooms’ and passages, many with exotic names (Glass Factory, Ninja Passage, Erabor); some more prosaic (Fred’s Room). Then try to imagine that you are actually swimming there.

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

I shall be posting some more photos in due course showing some of the details of the cave formations – intricate patterns, delicate tracery, irridescent colouring, pencil-thin rods, ‘rock’ folds that look like the finest linen. As always I am immensely grateful to both intrepid divers for use permission. I won’t pretend that these thrilling caves are easily accessible – this is emphatically not an adventure to try unguided with a snorkel and flippers. But as you drive along the highway past miles of forest, it’s worth reflecting that far below you are some of the most magnificent cave systems anywhere in the world – right there, on your very own island…

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

As it happens, the Delphi Club is very close to these caves, which lie within the boundaries of the newly created ‘South Abaco Blue Holes Conservation Area (see map). This is one of several such conservation areas on Abaco and in the wider Bahamas that are designed to protect the natural resources of the islands from development and exploitation. The second map shows how tantalisingly close Dan’s and Ralph’s caves are… and suggests that further exploration may lead to the missing link.

abaco-caves-map-jpg Abaco Caves Ralph & Dan jpg

Finally, here is a 4-minute video of one small part of the exploration, which gives a very good idea of what is entailed in investigating the narrow passages and huge cathedral-like caverns. Welcome to the Fangon Forest…

Hitoshi Miho, Ralph's Cave, Abaco

STIRRING TALES OF NORTHERN SHOVELERS

January 15, 2016 by Rolling Harbour

STIRRING TALES OF NORTHERN SHOVELERS

I’m broadly in favour of self-identifying bird names. You know where you are with a Spoonbill. If its bill is spoon-shaped, it is one. Conversely if it isn’t, it isn’t. True, you might waste a lot of time looking for a brownish duck gadding about near a wall, but the general principle of WYCIIWYG (what you call it is what you get) is a useful one.

Northern Shoveler 2.Abaco Bahamas.2.12.Tom Sheley

Thus with shovelers. Their beaks are shovel-shaped. They shovel about in the water to feed. It’s that simple. Being dabbling ducks, they are dab hands (wings?) at upending themselves to get that sturdy beak down in the water. These are highly specialist gadgets too, edged with ‘combs’ (lamellae) that strain out the water from a diet that includes aquatic vegetation and invertebrates. You can see this arrangement in the male shoveler in the header image.

Northern Shoveler.Abaco Bahamas.2.12.Tom Sheley

The male shoveler has striking plumage, with one of those ‘mallard drake’-coloured heads that is green except when the light catches it and it looks blue. I say ‘looks’, because the blue shades apparent in bird plumage do not result from pigments (which absorb most colours but reflect the visible colours) but from so-called ‘structural colouration’ resulting from scattered light, with the blue wavelength dominant. So even the bluest of blue birds – a bluebird, say, or an indigo bunting – is not blue but appears blue. But the bright red pigmentation of a male Northern cardinal is ‘real’ colour.

This male shoveler does not have a blue head… Northen Shovelers Foraging (Keith Salvesen) 5

Northern Shoveler (m & f) Abaco (Tony Hepburn) Northern Shoveler, Abaco (Woody Bracey)

The shovelers shown above (except for the ‘blue’-headed one which comes from the set below) were all photographed on Abaco. I mentioned the familiar dabbling method of feeding earlier. However a few days ago in Central Park NYC on The Lake near Bow Bridge, I witnessed shoveler feeding behaviour that was new to me. It’s probably perfectly well-known and documented, but that’s amateurs for you**. A flock of about 30 male and female shovelers had split into smaller groups of between 2 and 10. They formed circles – sometimes very tight – and swam round each other with their heads underwater, stirring up the water as they paddled round, so that their bills were always immersed in freshly disturbed food possibilities. The effect was hypnotic, as you can see from the 15 sec video I took. Although in the clip it looks as though the birds are rapidly progressing to the right, they in fact stayed in much the same place. They were not very close to me, so these are illustrative images rather than ‘Audubon shots’.

Northen Shovelers Foraging (Keith Salvesen) 7

** Of course as soon as I looked I discovered that “Large groups of northern shovelers swim rapidly in circles to collect food from the surface by creating a funnel effect” (cheers to Wiki) Spinus-northern-shoveler-2015-01-n025006-w

Credits: Tom Sheley (1, 2, 3); Tony Hepburn (4); Woody Bracey (5); Keith Salvesen (the rest)

AVIAN PISCAVORES CAUGHT IN THE ACT…

January 13, 2016 by Rolling Harbour

AVIAN PISCAVORES CAUGHT IN THE ACT…

There’s something enjoyable about watching a wild creature having a good meal, even if the meal consists of an item that, all things considered, you personally would prefer not to eat. While I am temporarily parted from my computer for a few days, I am able to publish blog posts from my phone. I could write one too, but that’s a bothersome and fiddly process, best avoided. So I thought you might enjoy a gallery of gorgeous birds doing what they like to do best – eat fish. Many thanks as ever to Phil Lanoue and Danny Sauvageau for use permission for their truly exceptional photos.

Great Blue Heron & Fish (Phil Lanoue) Cormorant with fish (Phil Lanoue) Anhingha with fish (Phil Lanoue) White Egret with fish (Phil Lanoue) Green Heron with fish (Phil Lanoue) Osprey with fish (Phil Lanoue) Tern with fish Reddish Egret (white morph) with fish (Phil Lanoue) green-heron-gilpin-point-abaco-keith-salvesen Osprey, Florida (Danny Sauvageau)

Birds featured are tri-colored heron in breeding plumage, great blue heron, cormorant, anhinga, white egret, green heron, osprey, tern and reddish egret (white morph).

All photos by Phil Lanoue except penultimate (Keith Salvesen) and last (Danny Sauvageau)

WTF? (WHAT’S THAT FISH) (6): THE SAND DIVER

January 8, 2016 by Rolling Harbour

WTF? (WHAT’S THAT FISH) (6): THE SAND DIVER

Time for another in the WTF? series, featuring weird (begging their pardons) or not very fish-like fish. The Sand Diver Synodus intermedius is a type of lizardfish found in subtropical waters and often around coral reefs. They can grow up to about 18 inches long and a prime specimen might weigh a couple of pounds. The markings are quite variable but one common characteristic seems to be a tendency to look somewhat down in the mouth; and to possess jaws full of tiny sharp teeth.

Sand divers have two rows of teeth on their upper jaw and three rows on their lower jaw. Not content with that, they also have rows of teeth on the palate and tongue. Were they 50 times the size, they would be truly awesome.

The rather primitive appearance of the sand diver is explicable from fossils, which show that their forbears were active in the Jurassic / Cretacean periods.

HOW DO THEY GET THEIR NAME?

Sand divers often bury themselves in the sand with only their head showing. They are so-called ‘ambush predators’, and burial is one method they use. Another is simply to lie on the sandy bottom, or on reef surfaces and wait for passing prey. Their colouring provides very good camouflage. Sand Diver Fish

WHAT’S ON A SAND DIVER MENU?

A good mix of small reef fishes. Bar jacks, blue chromis, wrasses, fairy basslets, small grunts and so forth. At their own level they are quite fearsome predators.

ARE THEY ON THE HUMAN MENU?

Well, I knew someone would ask that, so I carried out a search. The answer seems to be no. I have found nothing to suggest that they are edible, or that anyone has tried (or if they have, survived to tell the tale). Incidentally, the best way to find out if something is edible by humans is to search for a recipe. There are no sand diver recipes.

STOP PRESS Jason Knight has drawn my attention to a comment in WhatsThatFish.com (no relation) by one ‘Jenny’, who commends Sand Divers as food (“they cook up just as good as hogfish!”). So yes, they are edible and there is one recipe…