Australian Gull-billed Tern vs Aleutian Tern
Gelochelidon macrotarsa مقارنةً بـ Onychoprion aleuticus
Side-by-Side Comparison
| السمة | Australian Gull-billed Tern | Aleutian Tern |
|---|---|---|
| الاسم العلمي | Gelochelidon macrotarsa | Onychoprion aleuticus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 61,1 cm (24.1 in) | 52,4 cm (20.6 in) |
| الوزن | 246,66666666666666 g (8.70 oz) | 104,88 g (3.70 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Australian Gull-billed Tern only
بلا
Aleutian Tern only
حالة الحفاظ
Least Concern
Australian Gull-billed Tern
Vulnerable
Aleutian Tern
About These Birds
Australian Gull-billed Tern
Australian Gull-billed Tern, 38–42 cm, is a large, heavy-billed tern endemic to Australia, breeding in arid inland wetlands. Pale grey above, white below, with a robust black bill. Takes insects, small reptiles, and crabs rather than diving for fish. Nomadic in response to inland rainfall.
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.