Swallow-tailed Gull vs African Skimmer
Creagrus furcatus so với Rynchops flavirostris
Side-by-Side Comparison
| Thuộc Tính | Swallow-tailed Gull | African Skimmer |
|---|---|---|
| Tên Khoa Học | Creagrus furcatus | Rynchops flavirostris |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 81,8 cm (32.2 in) | 66,4 cm (26.1 in) |
| Khối Lượng | 695,0 g (24.52 oz) | 165,66666666666666 g (5.84 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Swallow-tailed Gull
Least Concern
African Skimmer
About These Birds
Swallow-tailed Gull
Swallow-tailed Gull, 55–60 cm, is the world's only fully nocturnal gull, breeding on the Galápagos Islands and roosting on the Humboldt Current. Distinctive red orbital ring, black-and-white head, deeply forked tail. Feeds at sea at night on squid and fish attracted to surface by bioluminescence.
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.