Relict Gull vs Aleutian Tern
Larus relictus so với Onychoprion aleuticus
Side-by-Side Comparison
| Thuộc Tính | Relict Gull | Aleutian Tern |
|---|---|---|
| Tên Khoa Học | Larus relictus | Onychoprion aleuticus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Vulnerable | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 67,0 cm (26.4 in) | 52,4 cm (20.6 in) |
| Khối Lượng | 516,75 g (18.23 oz) | 104,88 g (3.70 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Relict Gull only
Không
Aleutian Tern only
Không
Tình Trạng Bảo Tồn
Vulnerable
Relict Gull
Vulnerable
Aleutian Tern
About These Birds
Relict Gull
Relict Gull, 44–46 cm, is a Vulnerable species breeding on remote saline lakes in Mongolia and northern China. Black hood with white eye-crescents, red bill, red legs. Very poorly known outside breeding season; winters on Yellow Sea coasts. Threatened by drought and wetland degradation.
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.