pygargue à tête blanche vs Peregrine Falcon
Haliaeetus leucocephalus comparé à Falco peregrinus
Side-by-Side Comparison
| Attribut | pygargue à tête blanche | Peregrine Falcon |
|---|---|---|
| Nom scientifique | Haliaeetus leucocephalus | Falco peregrinus |
| Ordre | Accipitriformes | Falconiformes |
| Famille | Accipitridae | Falconidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 79,0 cm (31.1 in) | 43,0 cm (16.9 in) |
| Envergure | 203,0 cm (79.9 in) | 104,0 cm (40.9 in) |
| Poids | 4300,0 g (151.68 oz) | 750,0 g (26.46 oz) |
| Régime alimentaire | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Almost exclusively medium-sized birds caught in flight, including pigeons, doves, waterfowl, and songbirds. Hunts with … |
| Taille de la couvée | 1-4 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
pygargue à tête blanche only
Peregrine Falcon only
pygargue à tête blanche
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Peregrine Falcon
Diverse habitats from tundra to tropics, typically near cliffs or tall structures. Increasingly found in cities nesting on skyscrapers and bridges.
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.
Peregrine Falcon
A harsh, wailing 'kak-kak-kak-kak' repeated rapidly in defense of the nest. Alarm call is a long screaming 'raaak'. Mostly silent away from breeding sites.
Geographic Range & Migration
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Peregrine Falcon
One of the most widespread birds, found on every continent except Antarctica. Migratory populations travel vast distances between breeding and wintering grounds.
Statut de conservation
pygargue à tête blanche
Peregrine Falcon
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
Peregrine Falcon
Blue-grey upperparts with barred white underparts. A distinctive black moustachial stripe contrasts with the white throat and cheeks.
Short, notched blue-grey bill with a yellow cere
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.
Peregrine Falcon
The peregrine falcon is the fastest animal on Earth, reaching speeds over 389 km/h during its characteristic hunting stoop. Like the bald eagle, peregrines suffered dramatic declines from DDT but have recovered through intensive conservation programs. They have adapted remarkably well to urban environments.