Great Black-backed Gull vs Aleutian Tern
Larus marinus مقارنةً بـ Onychoprion aleuticus
Side-by-Side Comparison
| السمة | Great Black-backed Gull | Aleutian Tern |
|---|---|---|
| الاسم العلمي | Larus marinus | Onychoprion aleuticus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 95,6 cm (37.6 in) | 52,4 cm (20.6 in) |
| الوزن | 1678,3333333333333 g (59.20 oz) | 104,88 g (3.70 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Great Black-backed Gull only
بلا
Aleutian Tern only
بلا
حالة الحفاظ
Least Concern
Great Black-backed Gull
Vulnerable
Aleutian Tern
About These Birds
Great Black-backed Gull
Great Black-backed Gull, 61–74 cm, wingspan 142–168 cm, is the world's largest gull, breeding along North Atlantic coasts. Jet-black mantle, white body, massive yellow bill. Dominant predator among seabirds; preys on seabird chicks, puffins, rabbits, as well as scavenging. Partially migratory.
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.