Common Kestrel vs European Roller
Falco tinnunculus เปรียบเทียบกับ Coracias garrulus
Side-by-Side Comparison
| คุณสมบัติ | Common Kestrel | European Roller |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Falco tinnunculus | Coracias garrulus |
| อันดับ | Falconiformes | Coraciiformes |
| วงศ์ตระกูล | Falconidae | Coraciidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 34.0 cm (13.4 in) | 31.0 cm (12.2 in) |
| กว้างปีก | 74.0 cm (29.1 in) | 66.0 cm (26.0 in) |
| น้ำหนัก | 190.0 g (6.70 oz) | 130.0 g (4.59 oz) |
| อาหาร | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … | Large insects, especially beetles, grasshoppers, and crickets. Also takes small reptiles, frogs, and scorpions. Hunts … |
| จำนวนไข่ | 1-7 | 3-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Common Kestrel only
European Roller only
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
European Roller
Warm, dry, open country with scattered trees and nest holes. Breeds in tree cavities, earth banks, and nest boxes.
Song & Call Comparison
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
European Roller
A harsh, grating 'rack-rack' or 'quarrk' in flight. Gives a variety of sharp nasal calls at the nest. Not melodic; primary vocalizations are alarm and contact calls.
Geographic Range & Migration
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
European Roller
Southern and eastern Europe, Central Asia, and North Africa. Winters in sub-Saharan Africa.
สถานะการอนุรักษ์
Common Kestrel
European Roller
How to Tell Them Apart
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
European Roller
Turquoise-blue head, breast, and tail. Chestnut-brown back. Vivid ultramarine blue and black wing patches visible in flight.
Short, stout, dark hooked bill
About These Birds
Common Kestrel
The common kestrel is Europe's most abundant falcon, famous for its ability to hover motionless in the wind while scanning for prey. Research has shown kestrels can see ultraviolet light, allowing them to detect vole urine trails that reflect UV. The species has adapted remarkably well to urban environments.
European Roller
The European roller gets its name from the spectacular rolling and tumbling aerial displays performed by males during courtship. It is the only roller species in Europe and one of the continent's most colorful birds. Declining across much of its western range due to agricultural intensification and habitat loss.