noun
Aleutian Canada goose
A subspecies of the Canada goose, Branta canadensis leucopareia. The Japanese name is usually written in katakana.
See also: カナダ雁
シジュウカラガンは、アリューシャン列島で繁殖するカナダガンの亜種です。
The Aleutian Canada goose is a subspecies of the Canada goose that breeds in the Aleutian Islands.
Katakana spelling is standard for this bird name; usually written in kana.
Kanji spelling is rare and may not be widely recognized; the katakana form is strongly preferred.
カナダガン is the general term for the Canada goose species (Branta canadensis), while シジュウカラガン refers specifically to the Aleutian subspecies.
The name シジュウカラガン is a combination of 四十雀 (しじゅうから, 'great tit') and 雁 (がん, 'wild goose'), possibly from a perceived resemblance to the great tit in some feature, though the exact derivation is uncertain.