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Effi Cacy Of Cpth-Treated Egg Baits For Removing Ravens, Peter S. Coates, Jack O. Spencer, Jr., David J. Delehanty
Effi Cacy Of Cpth-Treated Egg Baits For Removing Ravens, Peter S. Coates, Jack O. Spencer, Jr., David J. Delehanty
Human–Wildlife Interactions
Human-altered landscapes have provided resource subsidies for common ravens (Corvus corax) resulting in a substantial increase in raven abundance and distribution throughout the United States and Canada in the past 25 years. Ravens are effective predators of eggs and young of ground-nesting birds. During 2002–2005, we tested whether chicken egg baits treated with CPTH (3-chloro-p-toluidine hydrochloride) could be used to manage raven numbers in an area where raven depredation was impacting sharp-tailed grouse (Tympanuchus phasianellus columbianus) and greater sage-grouse (Centrocercus urophasianus) populations in Nevada. We performed multiple raven surveys at a treatment site and …