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American Kestrel..Falco sparverius

American Kestrel..Falco sparverius

Also known as the 'sparrow hawk' this falcon nests in cavities, typically in trees, but occasionally in rock crevices, or even large birdhouses. When natural cavities of trees are used they are usually 8-30 feet above the ground. Kestrels can use woodpecker cavities with entrances as small as 3 inches and occupy a wide variety of hardwood trees having such cavities.