Yunnan Nuthatch

Sitta yunnanensis

The Yunnan nuthatch (Sitta yunnanensis) is a species of nuthatch endemic to South-Western China. It was first described by William Robert Ogilvie-Grant in 1900 based on a male holotype, and it occurs in pine forests at altitudes of up to 4,000 m (13,000 ft). It is a small nuthatch, measuring 12 cm in length, without pronounced sexual dimorphism . The upperparts are gray-blue, contrasting with the light, smooth, buffy lowerparts. It has a fine white eyebrow, distinct when the plumage is fresh, and surmounting a pronounced black eye line. It is a noisy bird, producing simple, nasal sounds, sometimes in repetitive series.

This blue-grey bird can be up to 12 centimetres (4.7 in) long, has a distinctive white eyebrow, and exhibits a small degree of sexual dimorphism. This noisy bird's diet consists of insects it finds on pine branches, and it is generally rare but can be locally common. Categorised as a near-threatened species on the IUCN Red List, it has a small range of 170,000 square kilometres (66,000 sq mi), and a 2009 study predicted that its population could decrease by 43.6% to 47.7% by between 2040 and 2069.