Bhutan also has a great variety of bird species. It is recognized as an area of high biological diversity and is known as the East Himalayan ‘hot spot’ situated as it is at the hub of 221 global endemic bird areas. The becorded number of bird species is over 670 and there are chances that this number could still go up. In addition, 57% of Bhutan’s globally threatened birds and 90% of the country’s restricted rare birds are dependent on forests.
Bhutan has about 415 resident bird species. These inhabitant birds are altitudinal refugees, moving up and down the mountains depending upon the seasons and weather conditions. Of about 50 species of birds that migrate in winters are the buntings, waders and ducks, thrushes and the birds of prey. Some 40 species are partial migrants and they include species such as swifts, cuckoos, the bee-eaters, fly catchers and the warblers.
Bhutan is also home to about 16 bird species that are endangered worldwide. These include the White bellied heron, Pallas Fish eagle, Blyth’s King fisher to name a few. Phobjikha valley in Wangdue Phodrang and omdeling in Trashi Yangtse are also two important places in Bhutan that are visited by the endangered Black Necked Crane.