No place to land: Loss of natural habitats threatens migratory birds globally

Observed in over 50 countries on 14-15 May, World Migratory Bird Day 2011 looks at “Land use changes from a bird’s-eye view”

United Nations Environment Programme
May 12, 2011

http://www.unep.org/Documents.Multilingual/Default.Print.asp?DocumentID=2641&ArticleID=8733&l=en&t=long