An Endemic Bird Area (EBA) is defined by BirdLife International as an area which encompasses the overlapping breeding ranges of restricted-range species, such that the complete ranges of two or more restricted-range species are entirely included within the boundary of the EBA.
Restricted-range species are defined as land birds that since ornithological recording began after 1800 have had a total global breeding range estimated as less than 50 000 km2.
Following the above criteria, BirdLife International has identified the following island EBAs which support significant populations of ACAP-listed species:
Galapagos Islands (Isla Española)
South Georgia (Islas Georgias del Sur)*
Selected References:
Ryan, P.G. 2008. Important Bird Areas: Tristan da Cunha and Gough Island. British Birds 101: 586-606.
John Cooper, ACAP Information Officer, 2 August 2011
*A dispute exists between the Governments of Argentina and the United Kingdom of Great Britain and Northern Ireland concerning sovereignty over the Falkland Islands (Islas Malvinas), South Georgia and the South Sandwich Islands (Islas Georgias del Sur y Islas Sandwich del Sur) and the surrounding maritime areas.