Aleutian Tern vs Sabine's Gull
Onychoprion aleuticus comparado com Xema sabini
Side-by-Side Comparison
| Atributo | Aleutian Tern | Sabine's Gull |
|---|---|---|
| Nome científico | Onychoprion aleuticus | Xema sabini |
| Ordem | Charadriiformes | Charadriiformes |
| Família | Laridae | Laridae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | — | — |
| Envergadura | 52,4 cm (20.6 in) | 53,0 cm (20.9 in) |
| Peso | 104,88 g (3.70 oz) | 182,16666666666666 g (6.43 oz) |
| Dieta | -- | -- |
| Tamanho da postura | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Estado de conservação
Vulnerable
Aleutian Tern
Least Concern
Sabine's Gull
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.
Sabine's Gull
Sabine's Gull, 27–32 cm, is an elegant small gull breeding in Arctic tundra and wintering in the Humboldt and Benguela Current upwellings. Striking tricoloured wing pattern — dark primaries, grey secondaries, white inner wing. Long-distance migrant; crosses equator twice annually. Planktivore and piscivore.