...concern to sportsmen and biologists for the past 80 years (Hornaday, 1916; Patterson, 1952; Autenrieth, 1981). Despitemanagement and research efforts that date to the 1930s (Girard, 1937), breeding populations of this species are declining...
http://www.all-llc.com/pdf/FinalGreaterSageGrouseWhitePaper3-15-07.pdf