Aleutian Tern vs Fairy Tern
Onychoprion aleuticus verglichen mit Sternula nereis
Side-by-Side Comparison
| Merkmal | Aleutian Tern | Fairy Tern |
|---|---|---|
| Wissenschaftlicher Name | Onychoprion aleuticus | Sternula nereis |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Vulnerable | Vulnerable |
| Länge | — | — |
| Flügelspannweite | 52,4 cm (20.6 in) | 35,6 cm (14.0 in) |
| Gewicht | 104,88 g (3.70 oz) | 68,5 g (2.42 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Vulnerable
Aleutian Tern
Vulnerable
Fairy 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.
Fairy Tern
Fairy Tern, 22–25 cm, breeds in southern Australia, New Zealand, and New Caledonia on sandy beaches. White and pale grey with an orange-yellow bill; delicate and buoyant in flight. Piscivore; hovers and plunge-dives in shallow coastal and estuarine waters. Vulnerable due to beach disturbance.