https://www.deutsche-digitale-bibliothek.de/item/X3OA6NONIQDIRPPVXPTN7DYL6F4CQIHC
Streifengans | Anser indicus - Ruf - Deutsche Digitale Bibliothek
anser indicusrufdeutschedigitalebibliothek
https://www.usgs.gov/publications/movement-patterns-bar-headed-geese-anser-indicus-during-breeding-and-post-breeding
Movement patterns of Bar-headed Geese Anser indicus during breeding and post-breeding periods at...
The highly pathogenic avian influenza (HPAI) H5N1 outbreak at Qinghai Lake, China, in 2005 caused the death of over 6,000 migratory birds, half of which were...