Studds, Colin E.Marra, Peter P.2019-03-132019-03-132011-10-26Colin E. Studds and Peter P. Marra, Reconsidering the role of precipitation and food availability in relation to the effect of photoperiod on spring departure of a migratory bird, Proc Biol Sci. 2012 Jan 7; 279(1726): 17–18, Doi: 10.1098/rspb.2011.2024https://dx.doi.org/10.1098%2Frspb.2011.2024http://hdl.handle.net/11603/130252 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.American redstartsSetophaga ruticillamigratory birdZonotrichia leucophryswhite-crowned sparrowText