American Robin vs Common Kestrel

Turdus migratorius compared with Falco tinnunculus

Side-by-Side Comparison

Attribute American Robin Common Kestrel
Scientific Name Turdus migratorius Falco tinnunculus
Order Passeriformes Falconiformes
Family Turdidae Falconidae
Conservation Status Least Concern Least Concern
Length 25.0 cm (9.8 in) 34.0 cm (13.4 in)
Wingspan 36.0 cm (14.2 in) 74.0 cm (29.1 in)
Weight 77.0 g (2.72 oz) 190.0 g (6.70 oz)
Diet 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 …
Clutch Size 2-4 1-7
Population Trend

Size Comparison

Body Length
American Robin 25.0 cm
Common Kestrel 34.0 cm
Wingspan
American Robin 36.0 cm
Common Kestrel 74.0 cm
Weight
American Robin 77.0 g
Common Kestrel 190.0 g

Habitat Comparison

Shared Habitats

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

Song

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

Song

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.

Conservation Status

Least Concern

American Robin

Least Concern

Common Kestrel

How to Tell Them Apart

American Robin

Plumage

Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.

Bill

Bright yellow bill with a dark tip

Common Kestrel

Plumage

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.

Bill

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.

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