pygargue à tête blanche vs Messager sagittaire
Haliaeetus leucocephalus comparé à Sagittarius serpentarius
Side-by-Side Comparison
| Attribut | pygargue à tête blanche | Messager sagittaire |
|---|---|---|
| Nom scientifique | Haliaeetus leucocephalus | Sagittarius serpentarius |
| Ordre | Accipitriformes | Accipitriformes |
| Famille | Accipitridae | Sagittariidae |
| Statut de conservation | Least Concern | Endangered |
| Longueur | 79,0 cm (31.1 in) | 130,0 cm (51.2 in) |
| Envergure | 203,0 cm (79.9 in) | 210,0 cm (82.7 in) |
| Poids | 4300,0 g (151.68 oz) | 3700,0 g (130.51 oz) |
| Régime alimentaire | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with … |
| Taille de la couvée | 1-4 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
pygargue à tête blanche only
Messager sagittaire 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.
Messager sagittaire
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
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.
Messager sagittaire
A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.
Geographic Range & Migration
pygargue à tête blanche
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Messager sagittaire
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Statut de conservation
pygargue à tête blanche
Messager sagittaire
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
Messager sagittaire
Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.
Short, strong, hooked greyish bill with a yellowish 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.
Messager sagittaire
The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.