Aleutian Tern vs Peruvian Tern
Onychoprion aleuticus مقارنةً بـ Sternula lorata
Side-by-Side Comparison
| السمة | Aleutian Tern | Peruvian Tern |
|---|---|---|
| الاسم العلمي | Onychoprion aleuticus | Sternula lorata |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Vulnerable | Endangered |
| الطول | — | — |
| طول الجناح | 52,4 cm (20.6 in) | 34,7 cm (13.7 in) |
| الوزن | 104,88 g (3.70 oz) | 52,0 g (1.83 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Vulnerable
Aleutian Tern
Endangered
Peruvian 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.
Peruvian Tern
Peruvian Tern, 23–25 cm, is an Endangered tern restricted to the Humboldt Current coastline of Peru and northern Chile. White forehead, yellow bill, grey above. Breeds on barren coastal deserts and fishmeal industry areas. Severely threatened by habitat disturbance and introduced predators.