Behavior and Ethology Commons^™

Behavioral Responses Of Burrowing Owls To Experimental Clutch Manipulations: An Investigation Of Conspecific Brood Parasitism And Laying Determinacy, Jamie Lynn Groves

Boise State University Theses and Dissertations

During 2012-2013, I investigated the behavioral responses of western burrowing owls (Athene cunicularia hypugaea) in southwestern Idaho to experimental conspecific brood parasitism to determine if they were capable of egg discrimination, and if they would accept or reject a parasitic egg introduced into their nest. I experimentally added one egg derived from source nests to host nests either during the egg-laying period or just after adult females initiated incubation and examined acceptance or rejection of the parasitic egg in relation to control nests where eggs were handled but not exchanged. Burrowing owl responses to parasitic eggs varied with …