The American Kestrel is the smallest, most numerous, and most widespread North American falcon. This bird is built for speed, its long pointed wings often bent back at the tip. While hunting, kestrels hover above an open field. These days, the lack of suitable nesting cavities, which limits American Kestrel populations in some areas, has lead to public interest in installing wooden nest boxes.

More info and transcript at BirdNote.org. 

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