Aleutian Tern vs Yellow-billed Tern
Onychoprion aleuticus comparé à Sternula superciliaris
Side-by-Side Comparison
| Attribut | Aleutian Tern | Yellow-billed Tern |
|---|---|---|
| Nom scientifique | Onychoprion aleuticus | Sternula superciliaris |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Vulnerable | Least Concern |
| Longueur | — | — |
| Envergure | 52,4 cm (20.6 in) | 33,8 cm (13.3 in) |
| Poids | 104,88 g (3.70 oz) | 47,800000000000004 g (1.69 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Aleutian Tern only
Yellow-billed Tern only
Aucun(e)
Statut de conservation
Vulnerable
Aleutian Tern
Least Concern
Yellow-billed 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.
Yellow-billed Tern
Yellow-billed Tern, 22–24 cm, is a freshwater tern of the Amazon and Orinoco river systems in South America. Yellow bill and legs, grey back, black cap. Piscivore; hovers over rivers and lakes, diving for small fish. Resident year-round along major tropical waterways.