A bird ofrocky stream in the himalayas and eles where this species has a distinctive pure white cap ,contasting with the surerrounding black plumage.rump andunder parts from the breast downwards are bright chestnut.tail also chestnut but with a black band terminally .sexes alike ; keeing singly or in pairs beside hill steram which are exposed and not covered by forest very terririal,cathing insects carried by the current and those flying above in a quick sally .has a shrill whitle.in winter descends to himalayan foothills.
A birds of scrub covered and open hillsides .male has a general pied appearance ,dark ashy grey mixed with black above.a white supercilium a white patch on wing swparating the dark wing quills from rest of the upperparts ,and white underparts suffused with grey on breast and flanks .sides of head ,wings and tail black,the last margined with white ,especially on the outer side .the female has the grey and black replaced with lighter and darker brown,with rusty upper tail coverts and outer tail .underparts lightly suffued with brown ,darker on breast .a typical bushchat in habbits.
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