Four bird species mobbing a Wrangler Pit Viper - Bird Ecology Study Group

Bird Academy's A-to-Z Glossary of Bird Terms

Ecology US Forest Service Research and Development

Saw Mill River Audubon – Connecting People and Nature Since 1953

Mobbing: When Smaller Birds Join Forces to Fend Off Larger Birds

Potoo - Wikipedia

Trip Reports - Tanzania Birding

Birds at the Park — Friends of Woodland Park

Birding – Saw Mill River Audubon

Birding Bill Beatty Nature

Backyard Birding Episode 4: Birds of All Feathers

Home - Bird Ecology Study Group