Birdlife International defines Endemic Bird Areas (EBAs) as places where the breeding ranges of two or more range-restricted species—those with breeding ranges of less than 50,000 km2 (19,000 sq mi)—overlap. In order to qualify, the whole of the breeding range of at least two range-restricted species must fall entirely within the EBA.[1] The entire Galápagos Islands archipelago is considered to be an Endemic Bird Area.[2] Ten Important Bird Areas, which are areas which meet a specific set of internationally agreed criteria, fall within the EBA's boundaries.[2]
^This list uses the taxonomy proposed by the International Ornithologists' Union.[3] Avian checklists and field guides typically list species in taxonomic order to show the evolutionary relationships between species; those which are more closely related are physically listed nearer each other.[4]
^This column sorts by threat level, as outlined in the key above.
Fitter, Julian; Fitter, Daniel & Hosking, David (2000). Wildlife of the Galápagos. Princeton, NJ: Princeton Pocket Guides. ISBN978-0-691-10295-5.
Gill, Frank; Donsker, David & Rasmussen, Pamela, eds. (2021). "IOC World Bird List". IOC. Retrieved 16 January 2021.
Santander, Tatiana; Freile, Juan F. & Loor-Vela, Sandra (2009). "Ecuador". In Devenish, C.; Díaz-Fernández, D. F.; Clay, R. P.; Davidson, I. & Yépez Zabala, I. (eds.). Important Bird Areas Americas - Priority sites for biodiversity conservation. Quito: BirdLife International. ISBN978-9942-9959-0-2.