Use of Ultraviolet Light as an Aid in Age Classification of Owls

  title={Use of Ultraviolet Light as an Aid in Age Classification of Owls},
  author={C. Scott Weidensaul and Bruce A. Colvin and David F. Brinker and J. Steven Huy},
Abstract Use of ultraviolet (UV) light, which causes porphyrin pigments in feathers of some birds to fluoresce, provides a simple, effective means of distinguishing multiple generations of flight feathers in owls. This permits easier and more accurate classification of age of adult owls. This lighting technique has been used extensively with Barn Owls (Tyto alba) and Northern Saw-whet Owls (Aegolius acadicus) and works well on a variety of owl species at night in the field, and should have wide… 

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  • Glori Berry
  • Environmental Science
    Wildlife Rehabilitation Bulletin
  • 2012
Barred owl admittance data from Avian Haven, a wildlife rehabilitation facility in central Maine, were examined from April 2005 through March 2011. During this time, 231 barred owls were admitted to

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