Épervier des Nicobar vs pygargue à tête blanche
Accipiter butleri comparé à Haliaeetus leucocephalus
Side-by-Side Comparison
| Attribut | Épervier des Nicobar | pygargue à tête blanche |
|---|---|---|
| Nom scientifique | Accipiter butleri | Haliaeetus leucocephalus |
| Ordre | Accipitriformes | Accipitriformes |
| Famille | Accipitridae | Accipitridae |
| Statut de conservation | Vulnerable | Least Concern |
| Longueur | — | 79,0 cm (31.1 in) |
| Envergure | 33,2 cm (13.1 in) | 203,0 cm (79.9 in) |
| Poids | 227,0 g (8.01 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 | -- | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
Épervier des Nicobar 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
Épervier des Nicobar
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
Épervier des Nicobar
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Statut de conservation
Épervier des Nicobar
pygargue à tête blanche
How to Tell Them Apart
Épervier des Nicobar
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
Épervier des Nicobar
The Nicobar Sparrowhawk (<em>Accipiter butleri</em>) is a small island raptor belonging to the family Accipitridae, encompassing hawks, eagles, and kites. Detailed plumage and behavioral descriptions of this species are limited in the available literature. The Nicobar Sparrowhawk is associated with forest habitats, consistent with its restricted range on the Nicobar Islands in the Indian Ocean, where tropical forest constitutes the primary landscape. This species is assessed as Vulnerable by the IUCN, reflecting concern over its small and geographically confined population; …
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.