Subadult Identification
Purple Martin ID: During the breeding season there are four distinct age/sex classes for Purple Martins. These are: adult male adult female subadult male subadult female. After nestlings fledge, there is a fifth distinguishable age class of juvenile. Juveniles cannot be sexed by plumage. Adult (ASY) Male—Adult males are the only Purple Martins to have iridescent, […]