Friday, November 26, 2021

American Kestrel

On 24 November 2021, along the northern end of the Challis Bike Trail, Erika and I photographed a pair of American Kestrels. The female behind the male is clearly larger than her mate. Larger females are typical of raptors. Northern females are typically 10 to 15% larger than their mates. This size difference may reduce aggression and competition between the sexes. Females have larger hunting ranges and take larger prey than males.

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