| [roosting-site characteristics of wintering black-necked cranes (grus nigricollis) at napahai, yunnan]. | from november 2009 to april 2010, roosting-site characteristics of black-necked cranes (grus nigricollis) were observed at napahai provincial nature reserve, shangri-la, yunnan, china. the positions of roosting-sites were determined by triangulation with markers and field correction. all of the 63 roosting-sites observed were located in patchy marshes with water, which contained some mud on the bottom and 81% of the roosting-sites were covered by plants. they also had a certain distance to areas ... | 2011 | 21509960 |