Common Kestrel

The Common Kestrel is a small, widespread falcon and one of the most familiar birds of prey across Europe, Asia, and Africa, frequently seen hovering over roadside verges and open fields.

Appearance

• Adult males: chestnut back and upperwing spotted with black, blue-grey head and tail, and a black terminal tail band.
• Adult females: chestnut-brown overall with dark barring on the back, wings, and tail (no grey head or tail).
• Both sexes: pointed wings, long tail, dark malar ('moustache') stripe, and buff underparts with dark streaking or spotting.
• Juveniles resemble females but with more diffuse markings.

Key field marks

• Frequent hovering flight with rapid wingbeats and a fanned tail while scanning the ground - the single most useful identification behavior
• Pointed wings and long tail typical of falcons
• Male shows a blue-grey head and tail contrasting with chestnut back; female is uniformly chestnut-brown with barring
• Often perches on wires, poles, and fence posts along roadsides

Similar species

• Common Hobby is darker and slimmer with longer, scythe-like wings, a short tail, and does not hover; shows rufous 'trousers' on adults.
• Merlin is smaller, stockier, and faster-flying with a direct dashing flight, rarely hovering.
• Lesser Kestrel is very similar but male lacks black spotting on the back and has blue-grey wing panels; typically more social, nesting in colonies.

Habitat

Highly adaptable, using farmland, grassland, moorland, coastal cliffs, and urban and suburban areas; frequently hunts along road verges, motorway embankments, and field margins.

Range

One of the most widespread raptors in the Old World, breeding across nearly all of Europe, Asia, and Africa outside the driest deserts and densest forests.

Migration

Northern and eastern populations are migratory, wintering in southern Europe and Africa; many western and southern European populations are resident year-round.

Behavior

Famous for hunting by hovering, holding a fixed position in the air with rapid wingbeats and a fanned tail while scanning the ground below, then dropping steeply onto prey; also hunts from an elevated perch.

Voice

Gives a shrill, repeated 'kee-kee-kee' or 'kli-kli-kli' near the nest and during territorial encounters, sharper and higher-pitched than a Buzzard.

Feeding

Feeds mainly on small mammals, especially voles, located partly by their ultraviolet-reflecting urine trails, which kestrels can detect; also takes large insects, small birds, and occasionally reptiles or earthworms.

Nesting & breeding

Does not build its own nest; uses ledges, tree cavities, old crow nests, or nest boxes, including on buildings and bridges in urban areas; lays 3-6 eggs, and readily takes to purpose-built nest boxes.