Northern Saw-whet Owl

The Northern Saw-whet Owl (<em>Aegolius acadicus</em>) is a small nocturnal raptor in the family Strigidae, found across forested and wetland habitats of North America. Detailed plumage and behavioral descriptions beyond nesting parameters are limited in the available data fields, though the species is relatively well studied. It is assessed as Least Concern globally. This species nests in tree cavities, often utilizing old woodpecker holes, and does not excavate its own nest site. Incubation lasts approximately 27 to 29 days, and clutch size ranges from 3 to 7 eggs. Fledging duration is not specified in available data. The Northern Saw-whet Owl is predominantly nocturnal and highly secretive, making population estimation challenging despite its apparent abundance across suitable habitats. It is believed to feed primarily on small mammals, particularly deer mice and voles, consistent with typical small owl dietary patterns. Migratory movements have been documented in parts of its range, with individuals sometimes appearing in unexpected locations during autumn passage.