Sex and Age Determination of Red Crossbills (loxia Curvirostra)

Authors

Allan R. Phillips

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Recommended Citation

Phillips, Allan R. (1977) "Sex and Age Determination of Red Crossbills (loxia Curvirostra)," Bird Banding: Vol. 48 : Iss. 2 , Article 2.
Available at: https://digitalcommons.usf.edu/bird_banding/vol48/iss2/2