pygargue à tête blanche vs Busard des marais
Haliaeetus leucocephalus comparé à Circus hudsonius
Side-by-Side Comparison
| Attribut | pygargue à tête blanche | Busard des marais |
|---|---|---|
| Nom scientifique | Haliaeetus leucocephalus | Circus hudsonius |
| 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) | 72,2 cm (28.4 in) |
| Poids | 4300,0 g (151.68 oz) | 470,5 g (16.60 oz) |
| Régime alimentaire | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | -- |
| Taille de la couvée | 1-4 | 3-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
pygargue à tête blanche only
Busard des marais 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
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.
Busard des marais
Geographic Range & Migration
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Busard des marais
Statut de conservation
pygargue à tête blanche
Busard des marais
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
Busard des marais
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.