Appearance
This large 17–18 cm long wheatear breeds in stony deserts from the Sahara and Arabia across to Iraq. It is largely resident but has occurred as a rare vagrant to western Europe as far away as Great Britain. It nests in crevices in rocks or walls laying 3-5 eggs.Although most wheatear species have distinctive male and female plumages, adults of both sexes of this species are black except for a white rump and mainly white tail. Full adults have a white crown, not shown by young birds.

Behavior
This wheatear has a loud song, more varied than most of its relatives and often including mimicry.References:
Some text fragments are auto parsed from Wikipedia.