Photo 5067626, (c) Joe Walewski, some rights reserved (CC BY-NC), uploaded by Joe Walewski

Attribution © Joe Walewski some rights reserved Uploaded by jwalewski Source iNaturalist Associated observations Photos / Sounds 2 photos What Northern Saw-whet Owl (Aegolius acadicus) Observer jwalewski Date September 29, 2016 08:17 PM CDT Place Lake County, MN, USA (Google, OSM) Date Added September 30, 2016 05:37 PM CDT Description We were even aging the birds using black light on their primary feathers...cool! 2 comments 7 IDs Research Grade View Sizes small medium large original