Atlantic White Tern vs Short-billed Gull
Gygis alba so với Larus brachyrhynchus
Side-by-Side Comparison
| Thuộc Tính | Atlantic White Tern | Short-billed Gull |
|---|---|---|
| Tên Khoa Học | Gygis alba | Larus brachyrhynchus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 50,4 cm (19.8 in) | — |
| Khối Lượng | 138,0 g (4.87 oz) | 395,0 g (13.93 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Atlantic White Tern only
Không
Short-billed Gull only
Tình Trạng Bảo Tồn
Least Concern
Atlantic White Tern
Not Evaluated
Short-billed 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.
Short-billed Gull
Short-billed Gull, 40–45 cm, breeds in interior Alaska and western Canada, wintering on the Pacific coast. Recently split from Common Gull; slightly smaller with a shorter bill and more rounded head. Omnivore; often inland on grasslands and agricultural fields during migration. Migratory.