Heermann's Gull vs African Skimmer
Larus heermanni so với Rynchops flavirostris
Side-by-Side Comparison
| Thuộc Tính | Heermann's Gull | African Skimmer |
|---|---|---|
| Tên Khoa Học | Larus heermanni | Rynchops flavirostris |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Near Threatened | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 67,2 cm (26.5 in) | 66,4 cm (26.1 in) |
| Khối Lượng | 448,26666666666665 g (15.81 oz) | 165,66666666666666 g (5.84 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Near Threatened
Heermann's Gull
Least Concern
African Skimmer
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.
African Skimmer
African Skimmer: 36–42 cm, black-and-white skimmer with a long bright orange-yellow bill where the lower mandible is longer than the upper. Flies low over large rivers and lakes, cutting the water surface with the lower bill to catch fish. Resident and partial migrant along large rivers and lakes of sub-Saharan Africa. NT.