|Location||Anguilla (to UK)|
|Central coordinates||63o 15.22' West 18o 16.94' North|
|IBA criteria||A4i, A4ii, A4iii, B4i, B4ii|
|Altitude||0 - 30m|
|Year of IBA assessment||2013|
Site description A low rocky island 13 kilometres northwest of Anguilla with 3 smaller cays off the west and north coasts. The cliffs and inland areas of scrub are home to Anguilla's largest seabird colonies. The coastline has low cliffs interspersed with 5 sandy beaches. Weathered limestone rocks reach sea level on parts of the west and northeast coast. Two large ponds lie inside beaches at Spring bay and Stoney bay. The centre of the island is covered in impenetrable, low, thorny scrub and thousands of prickly pear cacti. A small herd of c30 feral goats are a remnant of former more extensive grazing by livestock.
Key Biodiversity At least 28 species have been recorded including 9 species of breeding seabird:Red-billed Tropicbird, Masked Booby, Brown Booby, Magnificent Frigate Bird, Laughing Gull, Least Tern, Bridle Tern, Sooty Tern and Brown Noddy. The site holds the only Anguillan breeding populations of Magnificent Frigate Bird and Sooty Tern. Surveys in May 2007 documented 113,000 Sooty Terns breeding on Dog Island. Two small ponds and several beaches attract non-breeding and passage wildfowl and shorebirds including White-cheeked pintail, Blue-winged teal, and American Oyster Catcher. Wilsons Plover may breed. Both Osprey and Peregrine Falcons have been recorded outside the breeding season and Caribbean Elaenia, Bananaquits, and Blackfaced Grassquits are the only land birds present. The site has been little visited and requires further study.
Non-bird biodiversity: Dog Island holds populations of several species of reptile: a ground lizard Ameiva plei,a tree lizard Anolis gingivinus, Little Dwarf gecko Sphaerodactylus parvus, Island Dwarf gecko Sphaerodactylus sputator and a slippery back Mabouya sp.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Red-billed Tropicbird Phaethon aethereus||breeding||2012||90 breeding pairs||good||A4ii||Least Concern|
|Magnificent Frigatebird Fregata magnificens||breeding||2012||418 breeding pairs||good||B4ii||Least Concern|
|Masked Booby Sula dactylatra||breeding||2012||31 breeding pairs||good||B4ii||Least Concern|
|Brown Booby Sula leucogaster||breeding||2012||1,231 breeding pairs||good||A4ii||Least Concern|
|Laughing Gull Larus atricilla||resident||2007||365 breeding pairs||medium||A4i||Least Concern|
|Bridled Tern Onychoprion anaethetus||breeding||2007||46 breeding pairs||medium||B4i||Least Concern|
|Sooty Tern Onychoprion fuscatus||breeding||2007||113,000 breeding pairs||medium||A4i||Least Concern|
|Brown Noddy Anous stolidus||breeding||2007||191 breeding pairs||medium||B4i||Least Concern|
|A4iii Species group - waterbirds||breeding||2007||min 115,200 breeding pairs||medium||A4iii|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Dog Island||Marine Park||1,000||protected area is adjacent to site||0|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Sea||Open sea; Pelagic waters||major|
|Coastline||Sand dunes & beaches; Shallow marine areas, coral reefs & keys||minor|
|Shrubland||Arid lowland scrub||major|
|Wetlands (inland)||Freshwater lakes & pools||minor|
|Land-use||Extent (% of site)|
|Notes: Fishing, conch, diving|
|nature conservation and research||major|
|Notes: goats grazing|
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Recommended citation BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Dog Island. Downloaded from http://www.birdlife.org on 30/09/2016
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