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1 July 2001 SELECTING APPROPRIATE CONTROLS IN STUDIES OF OWL NEST-SITE SELECTION (REPLY TO MARKS)
Thomas Bosakowski, Dwight G. Smith
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Abstract

Marks (2001) is critical of our study of nest-site selection in Great Horned Owls (Bubo virginianus) because we compared our data from owl nests with data from random points rather than from unused stick nests. We argue that Great Horned Owls have so many options for nesting in eastern forests that there is little constraint on nest-site selection. Therefore, their choice of nest sites is determined largely by vegetation characteristics in the surrounding landscape, and comparison of owl nests with random points is the best way to assess nest-site selection. Furthermore, we believe that use of unused nests as controls, as advocated by Marks, is biased because control nests will have many of the same characteristics as nests used by owls.

Thomas Bosakowski and Dwight G. Smith "SELECTING APPROPRIATE CONTROLS IN STUDIES OF OWL NEST-SITE SELECTION (REPLY TO MARKS)," Journal of Field Ornithology 72(3), 465-467, (1 July 2001). https://doi.org/10.1648/0273-8570-72.3.465
Received: 4 February 2001; Accepted: 1 February 2001; Published: 1 July 2001
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