đại bàng đầu trắng vs European Roller
Haliaeetus leucocephalus so với Coracias garrulus
Side-by-Side Comparison
| Thuộc Tính | đại bàng đầu trắng | European Roller |
|---|---|---|
| Tên Khoa Học | Haliaeetus leucocephalus | Coracias garrulus |
| Bộ | Accipitriformes | Coraciiformes |
| Họ | Accipitridae | Coraciidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 79,0 cm (31.1 in) | 31,0 cm (12.2 in) |
| Chiều Dài Sải Cánh | 203,0 cm (79.9 in) | 66,0 cm (26.0 in) |
| Khối Lượng | 4300,0 g (151.68 oz) | 130,0 g (4.59 oz) |
| Chế Độ Ăn | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Large insects, especially beetles, grasshoppers, and crickets. Also takes small reptiles, frogs, and scorpions. Hunts … |
| Số Trứng | 1-4 | 3-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
đại bàng đầu trắng only
European Roller only
Không
đại bàng đầu trắng
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
European Roller
Warm, dry, open country with scattered trees and nest holes. Breeds in tree cavities, earth banks, and nest boxes.
Song & Call Comparison
đại bàng đầu trắng
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.
European Roller
A harsh, grating 'rack-rack' or 'quarrk' in flight. Gives a variety of sharp nasal calls at the nest. Not melodic; primary vocalizations are alarm and contact calls.
Geographic Range & Migration
đại bàng đầu trắng
North America from Alaska and Canada through the contiguous United States to northern Mexico.
European Roller
Southern and eastern Europe, Central Asia, and North Africa. Winters in sub-Saharan Africa.
Tình Trạng Bảo Tồn
đại bàng đầu trắng
European Roller
How to Tell Them Apart
đại bàng đầu trắng
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
European Roller
Turquoise-blue head, breast, and tail. Chestnut-brown back. Vivid ultramarine blue and black wing patches visible in flight.
Short, stout, dark hooked bill
About These Birds
đại bàng đầu trắng
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.
European Roller
The European roller gets its name from the spectacular rolling and tumbling aerial displays performed by males during courtship. It is the only roller species in Europe and one of the continent's most colorful birds. Declining across much of its western range due to agricultural intensification and habitat loss.