Aleutian Tern vs Little Tern
Onychoprion aleuticus so với Sternula albifrons
Side-by-Side Comparison
| Thuộc Tính | Aleutian Tern | Little Tern |
|---|---|---|
| Tên Khoa Học | Onychoprion aleuticus | Sternula albifrons |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 52,4 cm (20.6 in) | 33,9 cm (13.3 in) |
| Khối Lượng | 104,88 g (3.70 oz) | 55,0 g (1.94 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-4 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Aleutian Tern only
Không
Little Tern only
Không
Tình Trạng Bảo Tồn
Vulnerable
Aleutian Tern
Least Concern
Little Tern
About These Birds
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.
Little Tern
Little Tern is one of the world's smallest terns, 21–25 cm, breeding along coastlines and rivers across Europe, Asia, Africa, and Australia. White below, grey above, with a yellow bill tipped black and a white forehead patch. Hovers and plunge-dives for small fish. Migratory; winters in tropical coasts.