Phobjikha is a glacial valley on the periphery of the north western tip of the Black Mountain National Park at the altitude of 9,840 feet. The valley is a wide, beautiful alpine wetland valley and is a conservation area and lies on the northern boundary of the Jowo Durshing range. The hill side vegetation is mostly pine forest, interspersed with Rhododendron trees. Phobjikha valley is also one of the roosting grounds of the Black-necked cranes that migrate each year in winter from its northern habitats in Tibet and Siberia. These elegant and shy birds can be observed from early November to end of the March. RSPN and Phobjikha community are now working together to protect the habitat of endangered Black Necked Cranes.