raptors Archives - American Ornithological Society

HPAI wild birds North America — Generalized ecology of avian-origin influenza A (AI) viruses showing common directionality of cross-species transmission events, including those for highly pathogenic (HP) phenotypes. Reprinted from the Journal of Wildlife Management (2022) with permission.

15 June 2022

Highly pathogenic avian influenza (HPAI): An emerging disease threat in North America

By Andrew M. Ramey and Colleen M. Handel, U.S. Geological Survey Linked paper: Highly pathogenic avian influenza is an emerging disease threat to wild birds in North America by A. …

small hawk in flight, viewed from beneath — A Sharp-shinned Hawk in flight. Photo by Ted Keyel.

24 February 2020

AOS

How Do Raptors’ Diets Affect Their Mercury Exposure?

It was my experiences as a hawk counter that first drew me to studying raptors as a master’s degree student at the University of Minnesota-Duluth.

two fluffy brown and white hawk nestlings — A pair of Rough-legged Hawk nestlings. Photo by Ivan Pokrovsky.

13 November 2019

AOS

Why Do Rough-legged Hawks Nest Next to Peregrine Falcons?

Different raptor species in the Arctic nest at least 700 to 1,800 meters apart — except for the Rough-legged Hawk.