pygargue à tête blanche vs Buse à tête blanche
Haliaeetus leucocephalus comparé à Busarellus nigricollis
Side-by-Side Comparison
| Attribut | pygargue à tête blanche | Buse à tête blanche |
|---|---|---|
| Nom scientifique | Haliaeetus leucocephalus | Busarellus nigricollis |
| Ordre | Accipitriformes | Accipitriformes |
| Famille | Accipitridae | Accipitridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 79,0 cm (31.1 in) | — |
| Envergure | 203,0 cm (79.9 in) | 78,7 cm (31.0 in) |
| Poids | 4300,0 g (151.68 oz) | 926,0 g (32.66 oz) |
| Régime alimentaire | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | -- |
| Taille de la couvée | 1-4 | 1-2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
pygargue à tête blanche only
Buse à tête blanche only
Aucun(e)
pygargue à tête blanche
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Song & Call Comparison
pygargue à tête blanche
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
Buse à tête blanche
Geographic Range & Migration
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Buse à tête blanche
Statut de conservation
pygargue à tête blanche
Buse à tête blanche
How to Tell Them Apart
pygargue à tête blanche
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
Buse à tête blanche
About These Birds
pygargue à tête blanche
The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.
Buse à tête blanche
The Black-collared Hawk is a medium-sized raptor of South and Central American wetlands, with distinctive white head, chestnut body, and a black collar across the lower throat. It ranges from Mexico south through the Amazon Basin to Argentina, inhabiting the edges of rivers, lakes, marshes, and flooded forests. It feeds almost exclusively on fish, plunging feet-first into water to capture prey.