Nom scientifique: Branta hutchinsii
Article Wikipédia
Avibase
Dendroica
Cornell Lab of Ornithology
Hébergé par Études d'Oiseaux Canada
Global
1% of the global population estimate. This threshold is used to identify trigger species and IBAs under categories A4i/ii and A4iv.
Regional/Continental
1% of the regional/continental population estimate.
