Hawfinch vs Snowy Owl
Coccothraustes coccothraustes เปรียบเทียบกับ Bubo scandiacus
Side-by-Side Comparison
| คุณสมบัติ | Hawfinch | Snowy Owl |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Coccothraustes coccothraustes | Bubo scandiacus |
| อันดับ | Passeriformes | Strigiformes |
| วงศ์ตระกูล | Fringillidae | Strigidae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | 18.0 cm (7.1 in) | 63.0 cm (24.8 in) |
| กว้างปีก | 32.0 cm (12.6 in) | 145.0 cm (57.1 in) |
| น้ำหนัก | 55.0 g (1.94 oz) | 2100.0 g (74.08 oz) |
| อาหาร | Seeds and kernels, especially from cherries, olives, elms, and hornbeams. The bill exerts a force … | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| จำนวนไข่ | 3-5 | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
ไม่มี
Hawfinch only
Snowy Owl only
Hawfinch
Deciduous and mixed woodland, orchards, parks, and large gardens with mature fruiting trees.
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
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.
Snowy Owl
Male gives a deep booming hoot 'hooooo' and a rising 'hoo-hoo' series. Also barks sharply when alarmed. Quieter than many owls; silent during long Arctic winter hunts.
Geographic Range & Migration
Hawfinch
Europe, North Africa, and western and central Asia. Partially migratory, with northern populations moving south in winter.
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
สถานะการอนุรักษ์
Hawfinch
Snowy Owl
How to Tell Them Apart
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
Snowy Owl
Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.
Dark hooked bill mostly hidden by dense facial feathering
About These Birds
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.
Snowy Owl
The snowy owl is the heaviest North American owl and one of the most charismatic Arctic birds. Unlike most owls, it is largely diurnal, necessitated by the continuous daylight of Arctic summers. Snowy owl irruptions — periodic mass southward movements — are tied to lemming population cycles.