Aleutian Tern vs Chinese Crested Tern
Onychoprion aleuticus verglichen mit Thalasseus bernsteini
Side-by-Side Comparison
| Merkmal | Aleutian Tern | Chinese Crested Tern |
|---|---|---|
| Wissenschaftlicher Name | Onychoprion aleuticus | Thalasseus bernsteini |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Vulnerable | Critically Endangered |
| Länge | — | — |
| Flügelspannweite | 52,4 cm (20.6 in) | 63,8 cm (25.1 in) |
| Gewicht | 104,88 g (3.70 oz) | 280,0 g (9.88 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-4 | 1 |
| Population Trend | — | — |
Habitat Comparison
Gemeinsame Lebensräume
Aleutian Tern only
Chinese Crested Tern only
-
Erhaltungsstatus
Vulnerable
Aleutian Tern
Critically Endangered
Chinese Crested 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.
Chinese Crested Tern
Chinese Crested Tern is Critically Endangered, fewer than 50 individuals known. Breeding sites on small rocky islands off eastern China; winters in Southeast Asia. Orange bill with yellow tip, black crest. Extremely similar to Greater Crested Tern; often overlooked in mixed colonies. Piscivore; plunge-dives.