Assertion: nuthatch's distribution | /r/HasProperty | focused in eastern himalayas
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text: The bright blue color of its plumage invites a comparison to the blue nuthatch (S. azurea), or other blue-tinted nuthatch species such as the velvet-fronted nuthatch (S. frontalis), yellow-billed nuthatch (S. solangiae) and the sulphur-billed nuthatch (S. oenochlamys), but its distribution being focused in the eastern Himalayas, and the uniqueness of its plumage, argues against the assumption.