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Wednesday, February 8 • 8:20am - 8:40am
Technical Session. Prey Selection of Northern Goshawks in the Lewis and Clark National Forest, Montana

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AUTHORS: Marilyn Wright, Nate Bickford - University of Nebraska- Kearney

ABSTRACT: Prey richness and availability are often cited as one of the main driving factors of raptor nest selection and success; however, particular attributes of each forest have the potential to enhance or diminish the role that these factors can play. While researchers have traditionally focused on direct collection methods to analyze prey (pellets and prey remains), recent methods in prey analysis have included indirect analysis (video and photo) to reduce the chances of biased results. We used trail cameras to record prey items brought to northern goshawk nests in a dry western boreal forest from June to August (2016) and combined the data with studies that had examined prey remains in the same area. We also conducted point surveys for birds at both active and non-active nest locations and examined literature from previous small mammal studies throughout the range. From the data obtained, it may be possible to shed new light on how prey richness and availability factor into goshawk nest site choice in a dry western forest and what causes these raptors to alternate nest location frequently.

Wednesday February 8, 2017 8:20am - 8:40am CST

Attendees (4)