American Kestrels in the US have declined by 50% in the last 50 years and scientists are struggling to understand why. Increasingly kestrels are reliant on agricultural landscapes, yet little is known about how these landscapes affect their wintering diet. My study will be the first to comprehensively characterize the diet of wintering kestrels using novel genomic tools and will compare diet composition to crop type in order to provide data for both kestrel conservation and sustainable land use.