Белоголовый орлан vs Птица-секретарь
Haliaeetus leucocephalus в сравнении с Sagittarius serpentarius
Side-by-Side Comparison
| Характеристика | Белоголовый орлан | Птица-секретарь |
|---|---|---|
| Научное название | Haliaeetus leucocephalus | Sagittarius serpentarius |
| Отряд | Accipitriformes | Accipitriformes |
| Семейство | Accipitridae | Sagittariidae |
| Охранный статус | Least Concern | Endangered |
| Длина | 79,0 cm (31.1 in) | 130,0 cm (51.2 in) |
| Размах крыльев | 203,0 cm (79.9 in) | 210,0 cm (82.7 in) |
| Масса | 4300,0 g (151.68 oz) | 3700,0 g (130.51 oz) |
| Питание | 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 … |
| Размер кладки | 1-4 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
Белоголовый орлан only
Птица-секретарь only
Нет
Белоголовый орлан
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Птица-секретарь
Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.
Song & Call Comparison
Белоголовый орлан
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.
Птица-секретарь
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
Белоголовый орлан
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Птица-секретарь
Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.
Охранный статус
Белоголовый орлан
Птица-секретарь
How to Tell Them Apart
Белоголовый орлан
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
Птица-секретарь
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
Белоголовый орлан
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.
Птица-секретарь
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.