Cackling Goose vs Mute Swan
Branta hutchinsii 比較対象 Cygnus olor
Side-by-Side Comparison
| 属性 | Cackling Goose | Mute Swan |
|---|---|---|
| 学名 | Branta hutchinsii | Cygnus olor |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 152.0 cm (59.8 in) |
| 翼開長 | 79.3 cm (31.2 in) | 235.0 cm (92.5 in) |
| 体重 | 1801.8 g (63.56 oz) | 11000.0 g (388.01 oz) |
| 食性 | Grazes aquatic vegetation and sedges in Northern Hemisphere wetlands; migratory; winter diet of eelgrass and … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 一腹卵数 | 3-6 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Cackling Goose
Breeds on low-lying Arctic and subarctic tundra. Winters on grasslands, agricultural fields, and coastal marshes in the central and western United States. Often found in mixed flocks with Canada Geese.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Cackling Goose
A high-pitched, yelping 'luk-luk' or 'likl-likl' — higher-pitched and smaller-sounding than Canada Goose. Given rapidly in flock flight. Useful identification feature.
Mute Swan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Geographic Range & Migration
Cackling Goose
Breeds in Arctic Canada; winters on the Atlantic coast from New England to Florida, occasionally to the Bahamas and Gulf Coast.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保全状況
Cackling Goose
Mute Swan
How to Tell Them Apart
Cackling Goose
Resembles miniature Canada Goose; black head and neck with white chin strap. Brown-gray back; pale underparts. White undertail. Short neck and stubby bill distinguish from Canada Goose. Sexes similar.
Mute Swan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
About These Birds
Cackling Goose
カコドルフガンは北米北極地方に繁殖し、中部アメリカで越冬するカナダガンより小型の種です。黒い首と白い頬が特徴的ですが、カナダガンよりも小さいです。農地、草地、湿地に生息し、草や農作物を採食します。
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.