Taxonomy used in EcoRegistros for BIRDS

EcoRegistros primarily uses the AviList Checklist v2025 for birds worldwide and Savigny (2021) for some adjustments to seabirds. We also allow ourselves to adopt alternative sources for certain cases, which we refer to as "EcoRegistros Exceptions."

Latest updates:

EcoRegistros Exceptions:

Thalassarche steadi recognized as a valid species.

Leucocarbo bransfieldensis recognized as a valid species, following Orta et al. (2021a). Previously considered subspecies of L. atriceps.

Leucocarbo georgianus recognized as a valid species, following Orta et al. (2021b). Previously considered subspecies of L. atriceps.

Cinclodes maculirostris recognized as a valid species.

EcoRegistros BIRD Checklist
^{Consider that only species having records within the database include}

BIBLIOGRAPHY:

Orta, J., E. F. J. Garcia, D. A. Christie, F. Jutglar & G. M. Kirwan. 2021a. Antarctic Shag (Leucocarbo bransfieldensis), version 1.1. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.antsha1.01.1

Orta, J., E. F. J. Garcia, D. A. Christie, F. Jutglar & G. M. Kirwan. 2021b. South Georgia Shag (Leucocarbo georgianus), version 1.1. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.sogsha1.01.1

Last updated on 10/03/2026