WORLD SHOREBIRDS DAY: ABACO’S COMPLETE CHECKLIST


American Oystercatcher, Abaco (Tom Sheley)

WORLD SHOREBIRDS DAY: ABACO’S COMPLETE CHECKLIST

Abaco is home to 33 shorebird species. For a few, the islands are a permanent residence; for many others they are winter quarters; and some species are visitors transient in their migrations, or rare vagrants. Last year I produced 3 posts with plenty of photos showcasing 26 of the species, the remaining 7 all being transients or vagrants. 

Willet in flight.Abaco Bahamas.6.13.Tom Sheley small2

I divided the species into 3 categories: sandpipers & kin; plovers; and a catch-all ‘large shorebird’ group that included one or two sandpipers. Of the 26 birds featured and shown in the main checklist below, 23 are ones you might reasonably hope or expect to encounter on Abaco, though some only if you are lucky or your field-craft is excellent. The others are the long-billed dowitcher, American avocet and Wilson’s phalarope (of which only one has ever been seen on Abaco, with a photo to prove it)

Black-necked Stilt, Gilpin Point, Abaco (Keith Salvesen)

CLICK A LINK TO INVESTIGATE

LARGE SHOREBIRDS

SANDPIPERS

PLOVERS

Wilson's Plover chick.Delphi Club.Abaco Bahamas.Tom Sheley JPG copy

THE COMPLETE CHECKLIST

The codes tell you, for any particular bird, when you may see it (P = permanent, WR = winter resident, TR = transient, V = vagrant); whether it breeds (B) on Abaco; and your chance of seeing it, graded from easy (1) to vanishingly unlikely (5). 

  • Black-necked Stilt                             Himantopus mexicanus                PR B 3
  • American Avocet                               Recurvirostra americana             WR 4
  • American Oystercatcher                  Haematopus palliatus                   PR B 2
  • Black-bellied Plover                         Pluvialis squatarola                       WR 1
  • American Golden-Plover                Pluvialis dominica                           TR 4
  • Wilson’s Plover                                 Ochthodromus wilsonia                 PR B 2
  • Semipalmated Plover                      Charadrius semipalmatus             WR 2
  • Piping Plover                                     Charadrius melodus                       WR 3
  • Killdeer                                               Charadrius vociferus                     WR 2
  • Spotted Sandpiper                            Actitis macularius                          WR 1
  • Solitary Sandpiper                            Tringa solitaria                              WR 2
  • Greater Yellowlegs                            Tringa melanoleuca                      WR 2
  • Willet                                                   Tringa semipalmata                     PR B 2
  • Lesser Yellowlegs                              Tringa flavipes                               WR 3
  • Ruddy Turnstone                              Arenaria interpres                        PR 2
  • Red Knot                                             Calidris canutus                            WR 3
  • Sanderling                                          Calidris alba                                   WR 1
  • Dunlin                                                 Calidris alpina                               WR 2
  • Least Sandpiper                                Calidris minutilla                          WR 2
  • White-rumped Sandpiper               Calidris fuscicollis                          TR 3
  • Semipalmated Sandpiper                Calidris pusilla                               TR 2
  • Western Sandpiper                           Calidris Mauri                                TR 2
  • Short-billed Dowitcher                    Limnodromus griseus                    WR 1
  • Long-billed Dowitcher                     Limnodromus scolopaceus           WR 4
  • Wilson’s Snipe                                   Gallinago delicata                          WR 3
  • Wilson’s Phalarope                           Phalaropus tricolor                        V 4

Semipalmated Sandpiper (juv), Abaco (Bruce Hallett)

For the sake of completeness, the other 7 species of shorebird recorded for Abaco – all transients or vagrants – are:

  • Upland Sandpiper                     Bartramia longicauda             TR 4
  • Whimbrel                                    Numenius phaeopus                 TR 4
  • Hudsonian Godwit                   Limosa haemastica                    V5
  • Marbled Godwit                         Limosa fedoa                              V5
  • Buff-breasted Sandpiper          Tryngites subruficollis             V5
  • Pectoral Sandpiper                   Calidris melanotos                    TR 3
  • Stilt Sandpiper                           Calidris himantopus                 TR 3

Please excuse the wonky column formatting, an aspect of listing that WordPress doesn’t seem to cater for…

Ruddy Turnstone Abaco Bahamas. 2.12.Tom Sheley copy 2

Photo Credits: Tom Sheley, Bruce Hallett, Keith Salvesen

“CHECK OUT THE WEB” (2) SEMIPALMATED SANDPIPERS ON ABACO


Semipalmated Sandpiper, Abaco (Bruce Hallett)

“CHECK OUT THE WEB” (2) SEMIPALMATED SANDPIPERS ON ABACO

Having recently headlined a post for SEMIPALMATED PLOVERS with a web-related title, I’m repeating it for Abaco’s other part-webbed shorebird, the semipalmated sandpiper. Either it’s so apposite that it doesn’t need changing; or else I lack the imagination to think up something new…

Semipalmated Sandpiper (juv), Abaco (Bruce Hallett)
semipalmateThis attractive little sandpiper Calidris pusilla has the partially webbed feet that give it its name. In spring and fall these ‘peeps’ are the most numerous shorebirds on Abaco but they are just passing through on their migration further south – so-called ‘transients’. Flocks of these birds may be arriving any moment now on a beach near you. The signifiers are black legs, a short, straight dark bill, and a body that is white underneath and brown /gray on top, tinged lighter on the head and neck. 

Semipalmated Sandpiper Calidris pusilla (MDF) 

SO THEY’RE EASY TO SPOT ON THE SHORELINE?

Not really, I’m afraid. This species is very easy to confuse with other small shorebirds (with which they happily mingle), especially the less common western sandpiper which has a slightly longer and downturned bill. It takes an experienced birder to tell them apart. The most reliable way – to see the feet to check for the partial webbing between the toes – is far from easy. A photograph of the bird as it picks its way across sand, tide margins or mud may be best, if you can zoom in on the feet. The webbing is just visible in both the images above; and more clearly in the one below.

A recent SPSP from Bruce Hallett, in which the semipalmation can more easily be seen Semipalmated Sandpiper (Bruce Hallett)

WHERE DO SEMIPALMATED SANDPIPERS LIVE?

These are birds of the far north – Canada’s tundras and Alaska, close to water – where they breed and lay their eggs in scrapes. Rather sweetly, the male makes several prospective nests for the female to choose her favourite and furnish with grasses etc. Both adults share incubation duties. The chicks are independent almost as soon as they are hatched. Then in early fall they head many miles south to warmer places, of which Abaco is one of the most northerly, principally as a stopover for rest before continuing their journey to the coastal margins of South America. The migrating flocks may contain tens of thousands of birds. Of the many range maps around, this one from the excellent avibirds.com shows the marked contrast between the summer and winter habitats very clearly. 

Semipalmated Sandpiper distribution map (Avibirds.com)

Semipalmated Sandpiper (Dick Daniels Wiki)

HOW DO THEY COMPARE IN SIZE WITH OTHER SANDPIPERS?

The SPSP is one of the smallest shorebirds, the female being slightly larger than the male. This image shows 2 of them in the company of a much larger white-rumped sandpiper (also a transient on Abaco) for comparison.White-rumped Sandpiper + 2 semi-palmated(Woody Bracey)1 copy 2

Time now to get the binoculars out (now where on earth are they?) and patrol the beach to catch the first of these little birds as they begin to arrive in considerable numbers during their fall migration.Semi-palmated Sandpiper, Abaco (Alex Hughes)

Credits: Bruce Hallett (1, 2, 4), MDF (3), Avibirds (infographic), Dick Daniels (5), Woody Bracey (6) [& comments – cheers], Alex Hughes (7)