Lava Gull vs Aleutian Tern
Larus fuliginosus so với Onychoprion aleuticus
Side-by-Side Comparison
| Thuộc Tính | Lava Gull | Aleutian Tern |
|---|---|---|
| Tên Khoa Học | Larus fuliginosus | Onychoprion aleuticus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Vulnerable | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 68,2 cm (26.9 in) | 52,4 cm (20.6 in) |
| Khối Lượng | 380,0 g (13.40 oz) | 104,88 g (3.70 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Vulnerable
Lava Gull
Vulnerable
Aleutian Tern
About These Birds
Lava Gull
Lava Gull, 52–55 cm, is the world's rarest gull — only ~800–1,000 individuals exist, all on the Galápagos Islands. Sooty grey overall, white eyelids, red bill and feet. Scavenges at fishing ports and seal colonies; omnivore. Restricted range makes it highly vulnerable to any environmental change.
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.