Aleutian Tern vs White-cheeked Tern
Onychoprion aleuticus verglichen mit Sterna repressa
Side-by-Side Comparison
| Merkmal | Aleutian Tern | White-cheeked Tern |
|---|---|---|
| Wissenschaftlicher Name | Onychoprion aleuticus | Sterna repressa |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Vulnerable | Least Concern |
| Länge | — | — |
| Flügelspannweite | 52,4 cm (20.6 in) | 48,3 cm (19.0 in) |
| Gewicht | 104,88 g (3.70 oz) | 118,75 g (4.19 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Gemeinsame Lebensräume
Aleutian Tern only
White-cheeked Tern only
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Erhaltungsstatus
Vulnerable
Aleutian Tern
Least Concern
White-cheeked 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.
White-cheeked Tern
White-cheeked Tern, 32–34 cm, breeds around the Red Sea, Persian Gulf, and Indian Ocean coasts from East Africa to Pakistan. Grey above and below in breeding plumage, white cheek patch below the black cap. Piscivore; plunge-dives in coastal waters. Some movement to winter quarters in East African coasts.