An American Kestrel carrying what appears to be a very small mouse. This observation was made at the John Bunker Sands Wetland Center.

American Kestrel - With Prey

Wikipedia has this to say about American Kestrels:

Its breeding range extends from central and western Alaska across northern Canada to Nova Scotia, and south throughout North America, into central Mexico and the Caribbean. It is a local breeder in Central America and is widely distributed throughout South America. Most birds breeding in Canada and the northern United States migrate south in the winter. It is an occasional vagrant to western Europe.