Multiple plumage traits convey information about age and within-age-class qualities of a canopy-dwelling songbird, the Cerulean Warbler. - Boves, Than J.; Buehler, David A.; Wood, Petra B.; Rodewald, Amanda D.; Larkin, Jeffrey L.; Keyset, Patrick D.; Wigley, T. Ben (Auk: Ornithological Advances, 2014)