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  • A Technique for Measuring P...
    Lyon, Bruce E.

    The Condor (Los Angeles, Calif.), 08/1994, Volume: 96, Issue: 3
    Journal Article

    A technique for estimating the size of objects in photographs is described, and its accuracy and utility are demonstrated using data collected from both captive and free-ranging American coot chicks. Measures of the body size and growth rate of chicks are central to many avian studies.