Species fact sheet by Global Register of Migratory Species - www.groms.de

Aegolius acadicus (Gmelin, 1788) Family: Strigidae Order: Strigiformes Back
Northern saw-whet owl Sägekauz Petite Nyctale Mochuelo cabezón
CMS NL Redlist 2000 (Criteria) NL CITES II (Europe: SPEC threat status )
Migration: partial

Aegolius acadicus

Present year-round in breeding range, but considerable numbers move S in autumn, at least in E North America; S movement begins Sept-Nov in E Canada and NE USA, and Oct-Nov farther S; females migrate earlier than males. Common routes are from C Ontario down Ohio R valley tio Kentucky; from Atlantic coastal lowlands from Nova Scotia to North Carolina; and around L Superior from Minnesota to Wisconsin, then S and/or E; however, does not strictly adhere to these routes. In W, movements poorly documented, but probably altitudinal as well as latitudinal. Migrates throughout suppressed by full moon and strong, gusty winds. Accidental Bermuda.
(del Hoyo J A Elliott; J Sargatal (eds) (1999) - www.hbw.com )

Regions:
Recommended link: http://animaldiversity.ummz.umich.edu/accounts/aegolius/a._acadicus$narrative.html
Feedback: mail to Klaus Riede
Explanatory notes
(Last update: 05.08.02 by E.Heuel)

Populations