The Island of Sombrero. In: The Illustrated London News. Vol. XLVII, July to December 1865, Nr.1323. George C. Leighton, London 1866, S.17–18 (englisch, online).
Information Sheet on Ramsar Wetlands (RIS) – Sombrero Island (Anguilla). In: Mike Pienkowski (Hrsg.): Review of existing and potential Ramsar sites in UK Overseas Territories and Crown Dependencies. Annex 2: Draft Ramsar Information Sheets for proposed sites identified (as complete as possible in relation to any variations in the actual status of proposed sites), organised by Territory, UK45: Anguilla. United Kingdom Overseas Territories Conservation Forum (UKOTCF), Peterborough April 2005, S.512, hier: 20. Noteworthy Fauna (englisch, online verfügbar auf der Website des UKOTCF [PDF; 412kB; abgerufen am 20. November 2017]).