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Effects Of Old Nest Material On Occupancy And Reuse Of Artificial Burrows, And Breeding Dispersal By Burrowing Owls (Athene Cunicularia) In Southwestern Idaho, Corey S. Riding
Boise State University Theses and Dissertations
This thesis comprises two chapters describing my investigations of the breeding ecology of burrowing owls (Athene cunicularia) in southwestern Idaho. The first chapter details two experimental studies where I examined the effects of old nest material, primarily mammal dung, on the occupancy and reuse of artificial burrows by burrowing owls in 2004 and 2005. For burrows that owls had not used previously for nesting, adding material from actual nests did not induce occupancy. Thus, old nest material does not appear to function as a cue for burrow suitability. Removing old material from burrows that owls had used for …