Arctic Tern vs عقاب رخماء
Sterna paradisaea مقارنةً بـ Haliaeetus leucocephalus
Side-by-Side Comparison
| السمة | Arctic Tern | عقاب رخماء |
|---|---|---|
| الاسم العلمي | Sterna paradisaea | Haliaeetus leucocephalus |
| الرتبة | Charadriiformes | Accipitriformes |
| الفصيلة | Laridae | Accipitridae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | 34,0 cm (13.4 in) | 79,0 cm (31.1 in) |
| طول الجناح | 80,0 cm (31.5 in) | 203,0 cm (79.9 in) |
| الوزن | 110,0 g (3.88 oz) | 4300,0 g (151.68 oz) |
| النظام الغذائي | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … |
| عدد البيض في الوضع | 2-3 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
عقاب رخماء
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
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.
عقاب رخماء
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.
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.
عقاب رخماء
North America from Alaska and Canada through the contiguous United States to northern Mexico.
حالة الحفاظ
Arctic Tern
عقاب رخماء
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
عقاب رخماء
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
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.
عقاب رخماء
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.