Heermann's Gull vs Vega Gull
Larus heermanni so với Larus vegae
Side-by-Side Comparison
| Thuộc Tính | Heermann's Gull | Vega Gull |
|---|---|---|
| Tên Khoa Học | Larus heermanni | Larus vegae |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Near Threatened | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 67,2 cm (26.5 in) | — |
| Khối Lượng | 448,26666666666665 g (15.81 oz) | 1231,75 g (43.45 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Heermann's Gull only
Không
Vega Gull only
Tình Trạng Bảo Tồn
Near Threatened
Heermann's Gull
Not Evaluated
Vega Gull
About These Birds
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.
Vega Gull
Vega Gull, 55–68 cm, breeds in Siberia and winters on Pacific coasts from Japan to China. Formerly considered a subspecies of Herring Gull; slightly darker grey mantle, pink-fleshed orbital ring. Omnivore; scavenges at ports and forages along rocky coasts. Migratory; common in East Asian harbours in winter.