Natural History
The falcons and caracaras are around 65 species of diurnal birds of prey that make up the family Falconidae (representing all extant species in the order Falconiformes). The family likely originated in South America during the Paleocene and is divided into three subfamilies: Herpetotherinae, which includes the laughing falcon and the forest falcons; Polyborinae, which includes the spot-winged falconet and the caracaras; and Falconinae, the true falcons, hobbies and kestrels (Falco) and the falconets (Microhierax).
House sparrow.
Glacier National Park (Canada).
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