Keel-billed Toucan vs Mandarin Duck
Ramphastos sulfuratus 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | Keel-billed Toucan | Mandarin Duck |
|---|---|---|
| 学名 | Ramphastos sulfuratus | Aix galericulata |
| 目 | Piciformes | Anseriformes |
| 科 | Ramphastidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 50.0 cm (19.7 in) | 44.0 cm (17.3 in) |
| 翼開長 | 56.0 cm (22.0 in) | 70.0 cm (27.6 in) |
| 体重 | 400.0 g (14.11 oz) | 570.0 g (20.11 oz) |
| 食性 | Primarily fruit, supplemented with insects, lizards, eggs, and nestlings. Uses its long bill to reach … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 1-4 | 7-14 |
| 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.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
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.
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Geographic Range & Migration
Keel-billed Toucan
Southern Mexico through Central America to northern Colombia and northwestern Venezuela.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保全状況
Keel-billed Toucan
Mandarin Duck
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
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish 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.
Mandarin Duck
オシドリ。東アジア原産の美しいカモ。雄は鮮やかなオレンジ色の「帆羽」と複雑な羽毛模様が特徴的。体長41〜49cm。森林の池や川に生息し、樹洞に巣を作る。ドングリや水草を食べる。低危険種。