GULL-BILLED TERNS ON ABACO, BAHAMAS


Gull-billed Tern, Abaco (Alex Hughes) 01

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. 

Gull-billed Tern, Abaco (Alex Hughes) 04

Let’s be clear at the outset: there’s no such thing as a tern-billed gull. Which fortunately lessens the scope for species confusion. 

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 4 are transient or vagrant, and probably definitely not worth making a special trip to Abaco to find. The G-BT is designated SB3, a summer breeding resident that is generally uncommon, though may be more common in particular areas.

gull-billed-tern

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

gull-billed-tern

Gull-billed Tern, Abaco (Alex Hughes) 11

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) 06

There are 6 species of G-BT worldwide, and it is found in every continent. While many terns plunge-dive for fish, the G-BT 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 G-BT with a small crab. I always imagined that 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.

Gull-billed Tern, Abaco (Alex Hughes) 02

All photos were taken by Alex Hughes, a contributor to THE BIRDS OF ABACO, when he spent some time on Abaco some years ago 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

2 thoughts on “GULL-BILLED TERNS ON ABACO, BAHAMAS

  1. Greetings, Thank you for your entertaining and informative portrayal of various fauna in the Abacos.

    I have a collection of about 300 species of shells that were collected in the Bahamas. My husband, Charles Wood carefully sorted and identified them with their scientific name. I have offered the collection to various institutions but have not been able to find a home for them. Can you suggest a place that may be interested in the collection. I will gladly send them as I want them to find a good home. I look forward to hearing from you. Regards, Margo Wood

    Liked by 1 person

    • Hi Margo. How fascinating to hear of your husband’s amazing shell collection. It would be wonderful for them to find a home. Whereabouts are you? And what kind of institutions have you tried? I may be able to help, and that might include UK. Do email me at rollingharbour.delphi@gmail.com and we can consider it further. BTW is there a link to the C19 Charles Wood shell collector / engraver?

      Like

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