Motus’ project No. 753 pertains to northern saw-whet owls. Workers put Motus radio tags on the owls, and when the birds pass by specialized receiving stations, the creatures’ travels are revealed.

A northern saw-whet owl wing is held under a black light to help determine its age. The bird, the smallest species of owl in Wisconsin, was being measured, aged, banded and released.

Saw-whet wing feathers contain a pigment called porphyrin, which glows pink under UV light. New feathers glow more brightly than older feathers. Due to the owl’s molt pattern, they can be aged.

The northern saw-whet owl is the smallest owl species found in Wisconsin. Due to its reclusive, nocturnal habits, it's also little known and rarely seen. Licensed bird banders help track the birds.

Autumn’s north winds, cold temperatures, and long dark nights are what northern saw-whet owl banders dream about. Like many other bird species, northern saw-whet owls begin their southern migration to ...

A UV light illuminates porphyrins in a saw-whet owl’s wing to help researchers determine the feathers’ age Tuesday, Oct. 15. (Avery Howe/Bigfork Eagle) ...

Banding stations are revealing some of saw-whet owls' secrets. Banding stations are revealing some of saw-whet owls' secrets. Minneapolis. 24°F. eEdition. Minnesota News You Can Use. The Latest.

The event included two live owls which are native to Maine: our smallest owl species, a Northern saw-whet named Caribou and a great horned owl, the largest owl species in Maine, named Archie.

From mid-September to late October the northern saw-whet owls are typically migrating south to look for food and warming weather. They're the most tagged owl in North America according to Blom.

The birds weigh about as much as a bar of soap. That’s how Melissa Boyle Acuti describes the northern saw-whet owl, the smallest owl species found in Maryland and one of the smallest in North ...

The northern saw-whet owl is the smallest owl species found in Wisconsin. Due to its reclusive, nocturnal habits, it's little known and rarely seen. Smith: Saw-whets, Wisconsin's smallest owl, are ...