Nature Note: Red-Shouldered Hawks
Quintuple parasitism of a great reed warbler nest by common
Free birds: Bald eagles stir U.S. patriotism as webcam stars
White-eyed Buzzard The Peregrine Fund
North American birds eggs . x 1.10. Data.—Kutlik,Alaska, June 21
Ferruginous Hawk - Montana Field Guide
birds – Mary Ann Steggles
Common Backyard Birds — Backyard Bird Blog — Santa Clara Valley
Setting record straight on scarce warbler; hawks and more hawks
Original Vintage 1937 John James Audubon Birds of America
Ferruginous Hawk - Montana Field Guide