Arctic Tern vs Hawfinch
Sterna paradisaea ile kıyaslandığında Coccothraustes coccothraustes
Side-by-Side Comparison
| Özellik | Arctic Tern | Hawfinch |
|---|---|---|
| Bilimsel Ad | Sterna paradisaea | Coccothraustes coccothraustes |
| Takım | Charadriiformes | Passeriformes |
| Familya | Laridae | Fringillidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | 34,0 cm (13.4 in) | 18,0 cm (7.1 in) |
| Kanat Açıklığı | 80,0 cm (31.5 in) | 32,0 cm (12.6 in) |
| Ağırlık | 110,0 g (3.88 oz) | 55,0 g (1.94 oz) |
| Beslenme | Small fish and crustaceans caught by plunge-diving from the air. Hovers briefly before diving. | Seeds and kernels, especially from cherries, olives, elms, and hornbeams. The bill exerts a force … |
| Kuluçka Büyüklüğü | 2-3 | 3-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ortak Yaşam Alanları
Hiçbiri
Arctic Tern only
Hawfinch only
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.
Hawfinch
Deciduous and mixed woodland, orchards, parks, and large gardens with mature fruiting trees.
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.
Hawfinch
A sharp, metallic 'tsick' call — the primary vocalization and often all that's heard. Song is a thin, reedy warble. Generally inconspicuous vocally despite its striking appearance.
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.
Hawfinch
Europe, North Africa, and western and central Asia. Partially migratory, with northern populations moving south in winter.
Koruma Durumu
Arctic Tern
Hawfinch
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
Hawfinch
Orange-brown head with a black bib and eye stripe. Warm brown back, grey nape, and broad white wing bar. Massive head and bill give a top-heavy appearance.
Enormously powerful, conical, pale bill capable of cracking cherry and olive stones
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.
Hawfinch
The hawfinch possesses the most powerful bill relative to body size of any European bird, capable of cracking cherry stones that require a force of 27-43 kg. Despite its distinctive appearance, it is famously shy and difficult to observe. The skull contains special adaptations to absorb the enormous forces generated during seed-cracking.