North American Birds of Prey by Scott Weidensaul

Take Note: Pennsylvania Native, Nature Writer On 'The Global Odyssey Of Migratory Birds

Osprey eagle skirmish - Wildside Nature Tours

For the birds?

North American Birds of Prey - Scott Weidensaul - Google Books

Another Take on Snowy Owl (Harfang des neiges) Movements - Travels With Birds

The Naturalist in Migration Land - Down East Magazine Magazine

Keeping Track of Migrating Birds, the 'Sentinels' of Our Ecosystem - Limestone Post Magazine in Bloomington, Indiana

Migration Miracles: How Migrating Birds Find Their Way to Us … and Survive the Journey

Raptor Rapture Online Hog Island Audubon Camp

UBC Press Urban Raptors - Ecology and Conservation of Birds of Prey in Cities, Edited by Clint W. Boal and Cheryl R. Dykstra

Book Review: “Peterson Reference Guide to Owls of North America and the Caribbean”

Northern Saw-whet Owls - Common but Unknown