Kestrel bird is a medium-small falcon with a long tail and wings, and the only falcon to habitually hover. Kestrel bird fans the tail while doing so, angling the body at 45 degrees as it scans the ground for prey. In level flight it flaps rapidly and rather weakly, the slim body and long tail giving it a distinctive silhouette. The sexes differ: the Kestrel bird (male) is brick-red on the mantle and wing coverts with black primaries and primary coverts making a distinctive and readily identifiable upperwing pattern. The head is grey, with a weak black moustache below the eye, the tail is grey with a broad black terminal band. The underparts are buffy and spotted black, as are the pale underwings. The female is less reddish, with a brown head, browner wings, a duller black-barred tail and overall is more spotted and barred than the male.
Kestrel bird is resident in Western Europe, and ranging right across Asia and Africa. It avoids dense forests, desert, barren mountains and large treeless wetlands, but can be found virtually anywhere else. Kestrel bird is able to take advantage of almost every habitat, is often to be seen hunting along motorways, and even penetrates into urtian. areas. It is an efficient and adaptable hunter, and will nest most often in an old crow's nest, although it can utilize many different nest sites.
Like many other raptors, the Kestrel bird is only really vocal in the breeding season and around the nest. The most frequently heard call is a rapid series of sharp "kee-kee-kee-kee" notes, sometimes as "kik-kik-kik" or "i'i'i'i'i'i'i", becoming sharper and shorter when excited or alarmed. Other calls include a tremulous trilling cry "kri-ee-ee-ee-ee-ee" or "trree-r-r-r-r-r-eee", variable in length and intensity, and also a more plaintive "whee'u whee'u" and an often repeated sharp "kek" or "pik".