águia-de-cabeça-branca vs Secretário
Haliaeetus leucocephalus comparado com Sagittarius serpentarius
Side-by-Side Comparison
| Atributo | águia-de-cabeça-branca | Secretário |
|---|---|---|
| Nome científico | Haliaeetus leucocephalus | Sagittarius serpentarius |
| Ordem | Accipitriformes | Accipitriformes |
| Família | Accipitridae | Sagittariidae |
| Estado de conservação | Least Concern | Endangered |
| Comprimento | 79,0 cm (31.1 in) | 130,0 cm (51.2 in) |
| Envergadura | 203,0 cm (79.9 in) | 210,0 cm (82.7 in) |
| Peso | 4300,0 g (151.68 oz) | 3700,0 g (130.51 oz) |
| Dieta | 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 … |
| Tamanho da postura | 1-4 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
águia-de-cabeça-branca only
Secretário only
Nenhum
águia-de-cabeça-branca
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Secretário
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
águia-de-cabeça-branca
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.
Secretário
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
águia-de-cabeça-branca
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Secretário
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Estado de conservação
águia-de-cabeça-branca
Secretário
How to Tell Them Apart
águia-de-cabeça-branca
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
Secretário
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
águia-de-cabeça-branca
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.
Secretário
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.