Arctic Tern vs Mongolian Gull
Sterna paradisaea مقارنةً بـ Larus mongolicus
Side-by-Side Comparison
| السمة | Arctic Tern | Mongolian Gull |
|---|---|---|
| الاسم العلمي | Sterna paradisaea | Larus mongolicus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Not Evaluated |
| الطول | 34,0 cm (13.4 in) | — |
| طول الجناح | 80,0 cm (31.5 in) | — |
| الوزن | 110,0 g (3.88 oz) | 1163,75 g (41.05 oz) |
| النظام الغذائي | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| عدد البيض في الوضع | 2-3 | -- |
| 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.
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.
Mongolian Gull
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.
Mongolian Gull
حالة الحفاظ
Arctic Tern
Mongolian Gull
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
Mongolian Gull
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.
Mongolian Gull
Mongolian Gull, 55–65 cm, breeds at high-altitude lakes in Mongolia and winters on coasts of China, Korea, and Japan. Pale grey mantle, pink orbital ring, yellow bill. Recently recognised as a full species, split from the Herring Gull complex. Omnivore; forages at inland lakes and coastal estuaries.