Lesser Black-backed Gull vs Heermann's Gull
Larus fuscus so với Larus heermanni
Side-by-Side Comparison
| Thuộc Tính | Lesser Black-backed Gull | Heermann's Gull |
|---|---|---|
| Tên Khoa Học | Larus fuscus | Larus heermanni |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Near Threatened |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 82,4 cm (32.4 in) | 67,2 cm (26.5 in) |
| Khối Lượng | 841,3333333333334 g (29.68 oz) | 448,26666666666665 g (15.81 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Lesser Black-backed Gull only
Heermann's Gull only
Không
Tình Trạng Bảo Tồn
Least Concern
Lesser Black-backed Gull
Near Threatened
Heermann's Gull
About These Birds
Lesser Black-backed Gull
Lesser Black-backed Gull, 48–56 cm, breeds across Northern Europe and Iceland, undertaking one of the longest migrations of any large gull — to winter quarters in East Africa, India, and the Gulf. Slate-black mantle, yellow legs, yellow bill with red spot. Omnivore; increasingly winters in North America.
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.