Autour à tête grise vs pygargue à tête blanche
Accipiter poliocephalus comparé à Haliaeetus leucocephalus
Side-by-Side Comparison
| Attribut | Autour à tête grise | pygargue à tête blanche |
|---|---|---|
| Nom scientifique | Accipiter poliocephalus | Haliaeetus leucocephalus |
| Ordre | Accipitriformes | Accipitriformes |
| Famille | Accipitridae | Accipitridae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | 79,0 cm (31.1 in) |
| Envergure | 42,1 cm (16.6 in) | 203,0 cm (79.9 in) |
| Poids | 260,75 g (9.20 oz) | 4300,0 g (151.68 oz) |
| Régime alimentaire | -- | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … |
| Taille de la couvée | 1 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
Autour à tête grise only
Aucun(e)
pygargue à tête blanche only
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
Autour à tête grise
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.
Geographic Range & Migration
Autour à tête grise
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Statut de conservation
Autour à tête grise
pygargue à tête blanche
How to Tell Them Apart
Autour à tête grise
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
About These Birds
Autour à tête grise
The Grey-headed Goshawk (<em>Accipiter poliocephalus</em>) is a raptor of the family Accipitridae (Hawks, Eagles & Kites), occurring in the forested islands of the southwestern Pacific. It is a forest-specialist, inhabiting lowland and montane forest environments where it is believed to hunt birds and small vertebrates through the canopy. Detailed plumage and behavioral descriptions of this species are limited in the available literature, though its common name reflects a distinctive grey head coloration that distinguishes it within its range. Geographic range …
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.