Arctic Tern vs Peruvian Tern
Sterna paradisaea مقارنةً بـ Sternula lorata
Side-by-Side Comparison
| السمة | Arctic Tern | Peruvian Tern |
|---|---|---|
| الاسم العلمي | Sterna paradisaea | Sternula lorata |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Endangered |
| الطول | 34,0 cm (13.4 in) | — |
| طول الجناح | 80,0 cm (31.5 in) | 34,7 cm (13.7 in) |
| الوزن | 110,0 g (3.88 oz) | 52,0 g (1.83 oz) |
| النظام الغذائي | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | -- |
| عدد البيض في الوضع | 2-3 | 1-2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Arctic Tern
Breeds on coastal and tundra habitats. Spends most of its life at sea over the open ocean. Nests in colonies on beaches and rocky shores.
Song & Call Comparison
Arctic Tern
A sharp, grating 'kree-yah' alarm call. Also gives 'kik-kik-kik' near the nest. Highly aggressive vocally during the Arctic breeding season. Calls are harsh and insistent.
Peruvian Tern
Geographic Range & Migration
Arctic Tern
Breeds in the Arctic and sub-Arctic. Migrates to the Antarctic, experiencing two summers per year. Found on every ocean.
Peruvian Tern
حالة الحفاظ
Arctic Tern
Peruvian Tern
How to Tell Them Apart
Arctic Tern
Pale grey upperparts, white underparts with a black cap. Blood-red bill and short red legs. Deeply forked tail streamers. Winter adults lose the full black cap.
Slender, pointed, bright red bill
Peruvian Tern
About These Birds
Arctic Tern
The Arctic tern holds the record for the longest known migration of any animal, traveling roughly 70,000 km annually from Arctic to Antarctic and back. Over its 30-year lifespan, it may fly the equivalent of three round trips to the Moon. This remarkable bird experiences more daylight than any other creature on Earth.
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.