Aleutian Tern vs White-cheeked Tern
Onychoprion aleuticus so với Sterna repressa
Side-by-Side Comparison
| Thuộc Tính | Aleutian Tern | White-cheeked Tern |
|---|---|---|
| Tên Khoa Học | Onychoprion aleuticus | Sterna repressa |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 52,4 cm (20.6 in) | 48,3 cm (19.0 in) |
| Khối Lượng | 104,88 g (3.70 oz) | 118,75 g (4.19 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Aleutian Tern only
White-cheeked Tern only
Không
Tình Trạng Bảo Tồn
Vulnerable
Aleutian Tern
Least Concern
White-cheeked Tern
About These Birds
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.
White-cheeked Tern
White-cheeked Tern, 32–34 cm, breeds around the Red Sea, Persian Gulf, and Indian Ocean coasts from East Africa to Pakistan. Grey above and below in breeding plumage, white cheek patch below the black cap. Piscivore; plunge-dives in coastal waters. Some movement to winter quarters in East African coasts.