Atlantic White Tern vs Relict Gull
Gygis alba so với Larus relictus
Side-by-Side Comparison
| Thuộc Tính | Atlantic White Tern | Relict Gull |
|---|---|---|
| Tên Khoa Học | Gygis alba | Larus relictus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 50,4 cm (19.8 in) | 67,0 cm (26.4 in) |
| Khối Lượng | 138,0 g (4.87 oz) | 516,75 g (18.23 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Atlantic White Tern only
Không
Relict Gull only
Tình Trạng Bảo Tồn
Least Concern
Atlantic White Tern
Vulnerable
Relict Gull
About These Birds
Atlantic White Tern
Atlantic White Tern: 28–33 cm, wingspan 76–87 cm, ethereally white seabird with blue-grey bill, blue orbital ring, and large dark eyes. Breeds on tropical Atlantic islands including Ascension and Saint Helena; related species widespread across the Indo-Pacific. Nests on bare branches with no nest material. Feeds on small fish near the surface.
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.