The Black-winged Kite (Elanus caeruleus) is a small diurnal bird of prey in the family Accipitridae best known for its habit of hovering over open grasslands in the manner of the much smaller kestrels. This Eurasian and African species was sometimes combined with the Australian Black-shouldered Kite (Elanus axillaris) and the White-tailed Kite (Elanus leucurus) of North and South America which together form a superspecies.
This kite is distinctive, with long-wings, white, grey and black plumage and owl like forward-facing eyes with red irises. Although mainly seen on the plains, they are sometimes seen on grassy slopes of hills in the higher elevation regions of Asia. They are not migratory, but make short-distance movements in response to weather. Image credit: Basawant Annigeriā
Their Appearance: Small, stout, unmistakable raptor with pale grey plumage. Strikingly broad wings and short tail. Large, round, owl-like head with black "mascara" and short neck. Underside of wing-tips, and upper median and lesser coverts black. Immature birds often with rusty underparts and white fringes to flight feathers and scapulars. Glides with wings raised high like a harrier. Frequent and skilfull hovering.
The Black-winged Kite (Elanus caeruleus) is unmistakable due to the extremely long, red legs. High contrast plumage with pointed, black wings (both upper and under-side) and white underparts. Tail white, with white wedge extending up back. Back of adult male sooty black, while brownish black in female and immature. Head all white or with black markings independent of sex (males more often have black markings than females though). Immature with faint, pale fringes to coverts, and white trailing edge to secondaries visible in flight.
Their sound is not very vocal. A soft "Pjuu-harrr". Starting as a mellow, ascending whistle and ending with a harsh screech. Also uttered without the harsh ending, or only a Barn Owl-like screech. Other sounds: rapid series of soft "kekekekekekekekeke" and short whistles.
Most vocal at breeding ground. Various short,sharp "kyp" may resemble both Avocet, Coot and Spur-winged Lapwing (Vanellus spinosus). While a tern-like "kee-arr" is more distinct. Note that immature birds have a different contact call closely resembling Wood Sandpiper, but do not utter it in series.