01660oam 2200469 a 450 991070331660332120121218170104.0(CKB)4330000001241498(OCoLC)817060755(EXLCZ)99433000000124149820121111d2008 ua 0engur|n||||a|a||txtrdacontentcrdamediacrrdacarrierMolt and aging criteria for four North American grassland passerines[electronic resource] /Peter Pyle, Stephanie L. Jones, Janet M. RuthShepherdstown, WV :U.S. Fish & Wildlife Service,[2008]1 online resource (vii, 19 pages) illustrations (some color)Biological technical publication ;BTP-R6011-2008Title from title screen (viewed Dec. 18, 2012)."September 2008"--P. [4] cover.Includes bibliographical references (page 18).PasseriformesAge determinationNorth AmericaPasseriformesPhysiologyNorth AmericaMoltingPasseriformesAge determinationPasseriformesPhysiologyMolting.Pyle Peter1957-1419455Jones Stephanie L1410327Ruth Janet M1391558U.S. Fish and Wildlife Service.OCLCEOCLCEOCLCOOCLCQGPOBOOK9910703316603321Molt and aging criteria for four North American grassland passerines3533963UNINA