Common Kestrel vs Black-thighed Falconet

Falco tinnunculus compared with Microhierax fringillarius

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Side-by-Side Comparison

Attribute Common Kestrel Black-thighed Falconet
Scientific Name Falco tinnunculus Microhierax fringillarius
Order Falconiformes Falconiformes
Family Falconidae Falconidae
Conservation Status Least Concern Least Concern
Length 34.0 cm (13.4 in)
Wingspan 74.0 cm (29.1 in) 18.3 cm (7.2 in)
Weight 190.0 g (6.70 oz) 43.225 g (1.52 oz)
Diet Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … --
Clutch Size 1-7 2-5
Population Trend
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Size Comparison

Body Length
Common Kestrel 34.0 cm
Black-thighed Falconet
Wingspan
Common Kestrel 74.0 cm
Black-thighed Falconet 18.3 cm
Weight
Common Kestrel 190.0 g
Black-thighed Falconet 43.225 g
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Habitat Comparison

Shared Habitats

None

Common Kestrel only

Black-thighed Falconet only

Common Kestrel

Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.

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Song & Call Comparison

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.

Black-thighed Falconet

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Geographic Range & Migration

Common Kestrel

Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.

Black-thighed Falconet

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Conservation Status

Least Concern

Common Kestrel

Least Concern

Black-thighed Falconet

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How to Tell Them Apart

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

Black-thighed Falconet

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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.

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Related Comparisons

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