A Mechanical Recorder for Measuring Raptor Perching Activity

@inproceedings{Forren1984AMR,
  title={A Mechanical Recorder for Measuring Raptor Perching Activity},
  author={John D. Forren and Russell R. Haynes and David E. Samuel},
  year={1984}
}
Artificial hunting perches have been erected on areas lacking natural perches in several raptor investigations (Stumpf 1977, Olendorff et al. 1980, Hall et al. 1981). Perch-use data in these studies were primarily obtained by observations. This method, however, is limited by visibility (daylight), risks of observer interference, and the length of each observation period. To overcome these limitations and augment our observations of artificial hunting perches on reclaimed surface mines in… CONTINUE READING