|Location||Turks and Caicos Islands (to UK), Big Sandy Cay,East Cay,Long Cay,Penniston Cay|
|Central coordinates||71o 5.81' West 21o 24.76' North|
|IBA criteria||A4i, A4iii, B4ii|
|Altitude||0 - 12m|
|Year of IBA assessment||2007|
Site description Small rocky cays, with some sandy beaches, especially at Big Sand Cay. Long Cay is Statutory Sanctuary 25. Other small cays near Grand Turk constitute Grand Turk Cays Land and Sea National Park (Statutory NP 7). Penniston Cay and East (formerly Pinzon) Cay need transferring from this to Sanctuary status; Gibbs Cay should remain a National Park. Big Sand Cay Sanctuary is Statutory Sanctuary 23.
Key Biodiversity The site qualifies for A4iii status since it is known to hold on a regular basis more than 20,000 waterbirds. East (or Pinzon) Cay supports a regionally important breeding proportion of Audubon's Shearwaters. They probably breed on other Cays as well as East. Laughing Gull (150 breeding pairs) and White-tailed Tropicbirds (40 breeding pairs) are also recorded. Penniston Cay supports internationally important breeding numbers of Bridled Terns, with smaller numbers on other cays. Penniston Cay supports also the only breeding colony of Brown Boobies in TCI and a small colony of Magnificent Frigatebirds, which may reach Caribbean importance in some years. Long Cay supports important numbers of the Caribbean population of breeding Brown Noddies (7,400 breeding pairs) with the numbers here and on Penniston Cay constituting respectively "43%" and "9%" of the Caribbean population. Big Sand Cay's breeding Sooty Terns comprise more than 1% of the global population.
Non-bird biodiversity: Some cays are important for endemic vegetation and lizards Turks & Caicos Rock Iguanas Cyclura carinata carinata and Curly Tail Leiocephalus psammodromus, Shores are likely to be nest-sites for turtles Chelonia midas (EN), Eretmochelys imbricata (CR), Caretta caretta (EN).
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|White-tailed Tropicbird Phaethon lepturus||breeding||2005||40 breeding pairs||poor||B4ii||Least Concern|
|Laughing Gull Larus atricilla||breeding||2005||150 breeding pairs||poor||A4i||Least Concern|
|Bridled Tern Onychoprion anaethetus||breeding||2005||2,300 breeding pairs||poor||A4i||Least Concern|
|Sooty Tern Onychoprion fuscatus||breeding||2005||44,000 breeding pairs||poor||A4i||Least Concern|
|Brown Noddy Anous stolidus||breeding||2005||7,400 breeding pairs||poor||A4i||Least Concern|
|A4iii Species group - waterbirds||breeding||2005||min 53,000 breeding pairs||poor||A4iii|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Big Sand Cay||Sanctuary||151||protected area overlaps with site||0|
|Grand Turk Cays, Land and Sea||National Park||156||protected area overlaps with site||0|
|Long Cay||Sanctuary||80||protected area contained by site||80|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Sea||Shallow marine waters, coral reefs and keys||major|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Turks Bank Seabird Cays. Downloaded from http://www.birdlife.org on 28/08/2016
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