
Ross's Goose
species
細嘴雁(學名:Anser rossii;英語:Ross's goose)是分布于北美洲的一種雁屬鳥類,它冬季在美國南部。墨西哥北部過冬,夏季到加拿大繁殖[2]。其羽毛純白,只有翅尖是黑色的。除去原產地,歐洲的荷蘭和英國等一些國家也有馴養這種雁。 參考文獻 ^ Anser rossii. IUCN Red List of Threatened Species 2013.2. International Union for Conservation of Nature. 2012 [26 November 2013]. ^ Queen Maud Gulf Sibley, David. The Sibley Guide to Birds. Knopf. 2000. ISBN 0-679-45122-6.
via IUCN
Ross's goose (Anser rossii) is a white goose with black wingtips and a relatively short neck. It is the smallest of the three white geese that breed in North America. It is similar in appearance to a white-phase snow goose, but about 40% smaller. Other differences from the snow goose are that the bill is smaller in proportion to its body and lacks "black lips". Like snow geese, Ross's geese may exhibit a darker "blue" phase or morph, though this is extremely rare (<0.01% of adult birds).
Before the early 1900s, this goose was considered a rare species, possibly as a consequence of open hunting, but numbers have increased dramatically as a result of conservation measures. It is now listed as a species of Least Concern by the IUCN, and is protected by the Migratory Bird Treaty Act.
via Wikidata · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).