Aleutian Tern vs Lesser Crested Tern
Onychoprion aleuticus comparé à Thalasseus bengalensis
Side-by-Side Comparison
| Attribut | Aleutian Tern | Lesser Crested Tern |
|---|---|---|
| Nom scientifique | Onychoprion aleuticus | Thalasseus bengalensis |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Vulnerable | Least Concern |
| Longueur | — | — |
| Envergure | 52,4 cm (20.6 in) | 58,6 cm (23.1 in) |
| Poids | 104,88 g (3.70 oz) | 212,25 g (7.49 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Aleutian Tern only
Lesser Crested Tern only
Aucun(e)
Statut de conservation
Vulnerable
Aleutian Tern
Least Concern
Lesser 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.
Lesser Crested Tern
Lesser Crested Tern, 35–37 cm, breeds colonially on islands across the Indian Ocean and western Pacific, from Red Sea to Australia. Orange bill, black crest, grey mantle. Coastal piscivore; plunge-dives in tropical waters. Gregarious; often nests with Greater Crested Terns.