Aleutian Tern vs Antarctic Tern
Onychoprion aleuticus ile kıyaslandığında Sterna vittata
Side-by-Side Comparison
| Özellik | Aleutian Tern | Antarctic Tern |
|---|---|---|
| Bilimsel Ad | Onychoprion aleuticus | Sterna vittata |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Vulnerable | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 52,4 cm (20.6 in) | 52,0 cm (20.5 in) |
| Ağırlık | 104,88 g (3.70 oz) | 151,0 g (5.33 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Aleutian Tern only
Antarctic Tern only
Hiçbiri
Koruma Durumu
Vulnerable
Aleutian Tern
Least Concern
Antarctic 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.
Antarctic Tern
Antarctic Tern, 31–38 cm, breeds on sub-Antarctic islands and Antarctic Peninsula, dispersing across the Southern Ocean in austral winter. Grey above, white below, with red bill and feet. Unlike Arctic Tern, does not undertake pole-to-pole migration; remains in high southern latitudes year-round.