Arctic Tern vs Đại bàng đuôi trắng
Sterna paradisaea so với Haliaeetus albicilla
Side-by-Side Comparison
| Thuộc Tính | Arctic Tern | Đại bàng đuôi trắng |
|---|---|---|
| Tên Khoa Học | Sterna paradisaea | Haliaeetus albicilla |
| Bộ | Charadriiformes | Accipitriformes |
| Họ | Laridae | Accipitridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 34,0 cm (13.4 in) | 84,0 cm (33.1 in) |
| Chiều Dài Sải Cánh | 80,0 cm (31.5 in) | 225,0 cm (88.6 in) |
| Khối Lượng | 110,0 g (3.88 oz) | 5200,0 g (183.42 oz) |
| Chế Độ Ăn | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Fish, waterfowl, and carrion. Often pirates food from other birds. Takes fish from the water … |
| Số Trứng | 2-3 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Arctic Tern only
Đại bàng đuôi trắng only
Không
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
Đại bàng đuôi trắng
Coastlines, large lakes, and rivers with mature trees or cliffs for nesting. Requires large undisturbed areas.
Song & Call Comparison
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
Đại bàng đuôi trắng
High-pitched, yelping 'klee-klee' and deep barking 'ra-ra-ra'. Less vocal than Bald Eagle but similar chattering quality. Gives gull-like wailing near nest in breeding season.
Geographic Range & Migration
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Đại bàng đuôi trắng
Northern Europe and Asia from Greenland and Scandinavia to Japan. Reintroduced to Scotland and Ireland.
Tình Trạng Bảo Tồn
Arctic Tern
Đại bàng đuôi trắng
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
Đại bàng đuôi trắng
Brown body with a paler head in adults and a distinctive short white wedge-shaped tail. Massive broad wings in flight. Juveniles are darker overall.
Very large, heavy, pale yellow bill
About These Birds
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
Đại bàng đuôi trắng
The white-tailed eagle is Europe's largest eagle and the fourth-largest eagle in the world. Once extinct in Britain, it has been successfully reintroduced to Scotland and Ireland through conservation programs. These powerful raptors can live over 25 years and form lifelong pair bonds.