Atlantic White Tern vs Aleutian Tern
Gygis alba comparé à Onychoprion aleuticus
Side-by-Side Comparison
| Attribut | Atlantic White Tern | Aleutian Tern |
|---|---|---|
| Nom scientifique | Gygis alba | Onychoprion aleuticus |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Vulnerable |
| Longueur | — | — |
| Envergure | 50,4 cm (19.8 in) | 52,4 cm (20.6 in) |
| Poids | 138,0 g (4.87 oz) | 104,88 g (3.70 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Atlantic White Tern only
Aucun(e)
Aleutian Tern only
Statut de conservation
Least Concern
Atlantic White Tern
Vulnerable
Aleutian Tern
About These Birds
Atlantic White Tern
Atlantic White Tern: 28–33 cm, wingspan 76–87 cm, ethereally white seabird with blue-grey bill, blue orbital ring, and large dark eyes. Breeds on tropical Atlantic islands including Ascension and Saint Helena; related species widespread across the Indo-Pacific. Nests on bare branches with no nest material. Feeds on small fish near the surface.
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.