Arctic Tern vs Chinese Crested Tern
Sterna paradisaea в сравнении с Thalasseus bernsteini
Side-by-Side Comparison
| Характеристика | Arctic Tern | Chinese Crested Tern |
|---|---|---|
| Научное название | Sterna paradisaea | Thalasseus bernsteini |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Critically Endangered |
| Длина | 34,0 cm (13.4 in) | — |
| Размах крыльев | 80,0 cm (31.5 in) | 63,8 cm (25.1 in) |
| Масса | 110,0 g (3.88 oz) | 280,0 g (9.88 oz) |
| Питание | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| Размер кладки | 2-3 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
Arctic Tern only
Chinese Crested Tern only
Нет
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.
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.
Chinese Crested Tern
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.
Chinese Crested Tern
Охранный статус
Arctic Tern
Chinese Crested Tern
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
Chinese Crested Tern
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.
Chinese Crested Tern
Chinese Crested Tern is Critically Endangered, fewer than 50 individuals known. Breeding sites on small rocky islands off eastern China; winters in Southeast Asia. Orange bill with yellow tip, black crest. Extremely similar to Greater Crested Tern; often overlooked in mixed colonies. Piscivore; plunge-dives.