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Location St Kitts and Nevis
Central coordinates 62o 36.64' West  17o 13.60' North
IBA criteria A4i, B4i
Area 300 ha
Altitude 0 - 40m
Year of IBA assessment 2007

Site description Located approximately half-way between St. Kitts and Nevis, uninhabited Booby Island is a mix of dense, brushy vegetation and rocky outcroppings. The shoreline of this circular islet is composed of large rocks which almost immediately meet a steep hillside.

Key Biodiversity Booby Island is the only recorded breeding location within the Federation of St. Kitts and Nevis for a number of species. In May 2004, the following species were recorded: Red-billed Tropicbird Phaethon aethereus (2 pairs), Laughing Gull Larus atricilla (125 pairs), Roseate Tern Sterna dougallii (6 pairs), Bridled Tern Sterna anaethetus (60 nests), Sooty Tern Sterna fuscata (225 nests), and Brown Noddy Anous stolidus (8 pairs). No other avian surveys of the site are known. Booby Island meets the Caribbean Important Bird Area Criteria for Bridled Tern (1 % = 120) and Laughing Gull (1% = 150).

Non-bird biodiversity: Nothing recorded.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Laughing Gull Larus atricilla resident  2004  125 breeding pairs  poor  A4i  Least Concern 
Bridled Tern Onychoprion anaethetus breeding  2004  60 nests  poor  B4i  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Sea   major
Rocky areas   major

Land use

Land-use Extent (% of site)
unknown -

Further web sources of information 

Site profile from Important Bird Areas in the Caribbean: key sites for conservation (BirdLife International 2008)

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Booby Island. Downloaded from on 23/10/2016

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