Aleutian Tern vs Saunders's Tern
Onychoprion aleuticus comparado com Sternula saundersi
Side-by-Side Comparison
| Atributo | Aleutian Tern | Saunders's Tern |
|---|---|---|
| Nome científico | Onychoprion aleuticus | Sternula saundersi |
| Ordem | Charadriiformes | Charadriiformes |
| Família | Laridae | Laridae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | — | — |
| Envergadura | 52,4 cm (20.6 in) | 33,6 cm (13.2 in) |
| Peso | 104,88 g (3.70 oz) | 41,825 g (1.48 oz) |
| Dieta | -- | -- |
| Tamanho da postura | 1-4 | 2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Aleutian Tern only
Saunders's Tern only
Nenhum
Estado de conservação
Vulnerable
Aleutian Tern
Least Concern
Saunders's 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.
Saunders's Tern
Saunders's Tern, 22–24 cm, is a small coastal tern of the Red Sea, Persian Gulf, and Indian Ocean coasts. Very similar to Little Tern; separated by darker outer primaries and slightly smaller size. Piscivore; hovers and dives in shallow coastal waters and tidal mudflats.