American Robin vs Common Kestrel
Turdus migratorius so với Falco tinnunculus
Side-by-Side Comparison
| Thuộc Tính | American Robin | Common Kestrel |
|---|---|---|
| Tên Khoa Học | Turdus migratorius | Falco tinnunculus |
| Bộ | Passeriformes | Falconiformes |
| Họ | Turdidae | Falconidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | 25,0 cm (9.8 in) | 34,0 cm (13.4 in) |
| Chiều Dài Sải Cánh | 36,0 cm (14.2 in) | 74,0 cm (29.1 in) |
| Khối Lượng | 77,0 g (2.72 oz) | 190,0 g (6.70 oz) |
| Chế Độ Ăn | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … |
| Số Trứng | 2-4 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
American Robin only
Common Kestrel only
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
Song & Call Comparison
American Robin
A clear, caroling song of 2-3 note phrases: 'cheerily, cheer-up, cheerio'. Sings from dawn perches. Sharp 'tut-tut-tut' alarm call and thin 'seeee' flight note.
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.
Geographic Range & Migration
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
Tình Trạng Bảo Tồn
American Robin
Common Kestrel
How to Tell Them Apart
American Robin
Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.
Bright yellow bill with a dark tip
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
About These Birds
American Robin
The American robin is widely regarded as a harbinger of spring across North America. Despite its name, it is a true thrush unrelated to the European robin. American robins produce two to three broods per year and are among the earliest birds to sing in the morning chorus.
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.