Shrikes, Jays and Crows of Columbia County, Oregon – Wild Columbia County
Black-Billed Magpie
Birds Oregon Department of Fish & Wildlife
Black-billed Magpies East of the Sierra Crest
Oregon Backyard Feeder Birds: The Definitive Guide
Shrikes, Jays and Crows of Columbia County, Oregon – Wild Columbia County
Jays, Crows and Allies - On The Wing Photography
Similar Species to Black-billed Magpie, All About Birds, Cornell Lab of Ornithology
ODFW Recreation Report: Northwest Zone
ODFW Recreation Report: Northwest Zone
Black-Billed Magpie
Jays, Crows, and Magpies — Sacramento Audubon Society
Jays, Crows, and Magpies — Sacramento Audubon Society