Although no single bird species is unique to Himachal Pradesh, the survival of a few of GHNP’s residents is considered to be cause for concern. These include the western tragopan, cheer pheasant, red-headed vulture, long-billed thrush and white-throated tit, although the latter two are tolerably abundant.
A few species are at the western edge of their distribution. These include the white-browed shortwing, which has been scantly reported west of Nepal, the little pied flycatcher, and the rufous-vented tit ‒ also rare west of Nepal. Although found from Hazara to Nepal, the spectacled finch is sparsely distributed but regularly sighted in GHNP’s dense spruce and fir forest.
The long-billed thrush frequents heavy forest with dense understory (plant life growing beneath the canopy), at around 2,000m. It can usually be found in the Rolla area and other parts of GHNP. This species is likely to have been adversely affected by the extension of agriculture into the temperate deciduous forests of Himachal Pradesh