Bar-tailed Treecreeper
Certhia himalayana

Possible regional races (polytypic)
-C. h. ripponi
-C. h. yunnanensis
-C. h. himalayana
Certhia himalayana himalayana
Around Chopta, Kedarnath Sanctuary, Uttaranchal, India, 20th Jun, 2006.
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Very common below 6,000 feet in winter, disappearing at end of March, when it goes up to the forest above. In winter plumage the whole of the underparts are dark sooty, gradually changing to white as spring comes on, not, apparently, by a moult, but by change of colour. The size of bill varies greatly according to age: a young bird four months old has the bill at gape 0.62 inch; one of eight months 0.8; full grown, 1.

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