Species
Falco sparverius (American kestrel)
Falco sparverius. Photo: (c) Alison Young, some rights reserved (CC BY-NC)
The American kestrel (Falco sparverius) is the smallest and most common falcon in North America. It has a roughly two-to-one range in size over subspecies and sex, varying in size from about the weight of a blue jay to a mourning dove. It also ranges to South America, and is a well-established species that has evolved seventeen subspecies adapted to different environments and habitats throughout the Americas. It exhibits sexual dimorphism in size (females being moderately
Sightings
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