Herein we present the most recent update of the Checklist of Birds of Ecuador, following recent taxonomic changes adopted by the International Ornithology Committee (IOC; Gill et al. 2020). This is the official Ecuadorian country list and it stands at 1,718 species (by July 2020). In order to keep a simple checklist, we have adopted a single taxonomic treatment in two versions of the downloadable list (IOC and Clements et al. 2020). Total species in the Clements et al. version of the list is 1699 (1645 confirmed, 54 undocumented). We acknowledge that birders and ornithologists working in Ecuador, or visiting it, are still familiar with taxonomy used by Ridgely and Greenfield (2001), for Galapagos, the recent revision made by Wiedenfeld (2006), as well as with the more recent field guides by McMullan & Navarrete (2017) and Freile & Restall (2018). Consequently, in the comparative version of the list, we include names adopted in these books and guides. Additionally, the comparative list includes all taxonomic lists (IOC, Clements et al., SACC, BirdLife International-HBW), and the list of Spanish names adapted by CERO from the first version made by Paul J. Greenfield, Fernando Ortiz-Crespo and Juan C. Matheus (Ortiz et al. 1990).

Each version of the list includes on status in the country (confirmed = x; non-breeding visitor = nb; endemic = (e); hypothetical/unconfirmed = h; introduced = in; ex = extinct); status in continental Ecuador and Galapagos separately; altitudinal ranges and extra-limital records; subspecies (following Ridgely & Greenfield 2001, Freile & Restall 2018, Clements et al. 2020, and Gill et al. 2020); and recent conservation status following IUCN-BirdLife. The comparative list includes families according to IOC. In the comparative list, cells marked in yellow and orange indicate differences with the IOC list in scientific and English names, respectively.

Luckily, English names change little in spite of recent revolutionary changes in taxonomy. For those in need of an extra help to cope with changes or with any other information in these lists, we recommend to contact us at or directly to CERO’s email address. If you detect mistakes or if you have any comments on both the simple checklist and the comparative list, please contact us at the email address above.

Ecuador_simple list_version 2020_IOC_xlsx

Ecuador_simple list_version 2020_IOC_pdf

Ecuador_simple list_version 2020_Clements et al_xlsx

Ecuador_simple list_ version 2020_Clements et al_pdf

Ecuador_lista comparativa final_2020_xlsx

Ecuador_lista comparativa final_2020_pdf


The Ecuador bird list is made up of two lists, as follows:

Primary list (1664 species): species with at least one record in Ecuador, with supporting evidence. Supporting evidence is the documentation of those records that allows future independent verification. Evidence might be: published photograph or deposited in a public archive; museum specimen; published audio recording or deposited in a public archive; published video recording or deposited in a public archive; revision, validation and online publication by the Committee for Ecuadorian Records in Ornithology.

Secondary list (55 species): species positively recorded in Ecuador but lacking supporting evidence; i.e., these are only observed or heard within current country boundaries by experienced observers. Their presence in Ecuador is considered hypothetical/undocumented until verifiable evidence is obtained, or absence proved by documentary evidence.

Please note: We are regularly revising the status of hypothetical/undocumented species, as well as of species that has been mentioned in publications or reported as occurring in Ecuador, but for which evidence is erroneous, invalid or has been proved to be wrong with new information.

How to cite these lists: Freile, J. F., D. M. Brinkhuizen, P. J. Greenfield, M. Lysinger, L. Navarrete, J. Nilsson, S. Olmstead, R. S. Ridgely, M. Sánchez-Nivicela, A. Solano-Ugalde, N. Athanas, R. Ahlman & K. A. Boyla. 2020. Lista de las aves del Ecuador / Checklist of the birds of Ecuador. Comité Ecuatoriano de Registros Ornitológicos. Disponible en: