Sombrero Island Nature Reserve Marine Park
- Country:United Kingdom of Great Britain and Northern Ireland (Overseas territories)
- Site number:2354
- Area:1,050.7 ha
- Designation date:22-05-2018
- Coordinates:18°35'N 63°25'W
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.
The Site is formed by Sombrero Island, an offshore cay, and the surrounding sea; it lies some 65 kilometres north-west of the mainland of Anguilla. The Island is a remote, flat-topped rocky outcrop, characterized by its karst topography. The sparse vegetation is concentrated on the eastern half. The otherwise-flat Island was once mined for phosphate and is now marked by craters up to ten metres deep. These craters, and the shallower pits formed over time through natural weathering and erosion (particularly along the shoreline) often form shallow pools in which periwinkles and small reef fish can be found, attracting resting and feeding seabirds. The Island was significantly damaged by Hurricane Luis in 1995, but the vegetation is recovering and once more provides important habitat to the endemic Sombrero Island ground lizard Ameiva corvina. Over 40 endemic species of insect have been documented. The Island was listed in 2005 as an Important Bird Area for its nesting population of bridled tern Sterna anaethetus. Brown booby Sula leucogaster, masked booby Sula dactylatra and brown noddy Anous stolidus also nest there in internationally important numbers.
- Last publication date:05-09-2018
Ramsar Information Sheet (RIS)
Additional reports and documents
- A description of the site in a national or regional wetland inventory