Keel-billed Toucan vs Mallard
Ramphastos sulfuratus 比較対象 Anas platyrhynchos
Side-by-Side Comparison
| 属性 | Keel-billed Toucan | Mallard |
|---|---|---|
| 学名 | Ramphastos sulfuratus | Anas platyrhynchos |
| 目 | Piciformes | Anseriformes |
| 科 | Ramphastidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 50.0 cm (19.7 in) | 58.0 cm (22.8 in) |
| 翼開長 | 56.0 cm (22.0 in) | 90.0 cm (35.4 in) |
| 体重 | 400.0 g (14.11 oz) | 1100.0 g (38.80 oz) |
| 食性 | Primarily fruit, supplemented with insects, lizards, eggs, and nestlings. Uses its long bill to reach … | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| 一腹卵数 | 1-4 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Keel-billed Toucan
Tropical and subtropical lowland rainforests and forest edges from sea level to about 1,900 meters.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Keel-billed Toucan
Produces a repeated frog-like croaking 'prrrek-prrrek' or 'terrio-terrio'. Not melodic; the call resembles a mechanical rattle or frog. Also gives bill-clattering.
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Geographic Range & Migration
Keel-billed Toucan
Southern Mexico through Central America to northern Colombia and northwestern Venezuela.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
保全状況
Keel-billed Toucan
Mallard
How to Tell Them Apart
Keel-billed Toucan
Black body with a bright yellow throat and chest. Red undertail coverts. The enormous bill is green with orange sides, a blue patch, and a red tip.
Enormous, lightweight, multicolored bill up to 15 cm long — green, orange, blue, and red
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
About These Birds
Keel-billed Toucan
The keel-billed toucan is the national bird of Belize and one of the most recognizable birds in the Neotropics. Its oversized bill, which can be a third of its body length, is actually very light due to its hollow honeycomb structure. Toucans roost communally, with up to six adults squeezing into a single tree cavity.
Mallard
世界で最も一般的なカモ。雄は光沢のある緑色の頭、白い首輪、栗色の胸が特徴。体長50〜65cm。ほぼ世界中の湖、川、池、湿地に生息。雑食性で植物や無脊椎動物を食べる。多くの家禽カモの祖先。低危険種。