Glaucous Gull vs Aleutian Tern
Larus hyperboreus comparé à Onychoprion aleuticus
Side-by-Side Comparison
| Attribut | Glaucous Gull | Aleutian Tern |
|---|---|---|
| Nom scientifique | Larus hyperboreus | Onychoprion aleuticus |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Laridae | Laridae |
| Statut de conservation | Least Concern | Vulnerable |
| Longueur | — | — |
| Envergure | 92,6 cm (36.5 in) | 52,4 cm (20.6 in) |
| Poids | 1933,3333333333333 g (68.20 oz) | 104,88 g (3.70 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Glaucous Gull
Vulnerable
Aleutian Tern
About These Birds
Glaucous Gull
Glaucous Gull, 62–68 cm, is an imposing all-white Arctic gull — no dark markings on wing tips. Breeds across the High Arctic and ventures south in winter to both sides of the North Atlantic and Pacific. Predator and scavenger; preys on seabird eggs and chicks at colonies. Powerful aggressive kleptoparasite.
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.