Scientists Finally Identify a Deadly Toxin That's Been Killing Birds
Concerns about a mystery disease killing songbirds making its way to Wisconsin
Bird flu spreads to Southern California, infecting chickens, wild birds and other animals
Songbird populations are declining across Central Oregon, Local&State
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Watch We Shall Remain, American Experience, Official Site
Florida Officials Watching For Illness Killing Songbirds In Other Parts Of U.S.
Eastern US sees Songbirds dying from mysterious illness, scientists ask public for help
A Mystery Illness Is Killing Mid-Atlantic Songbirds : NPR
Mysterious Bird Deaths in the Mid-Atlantic region
Mysterious bird deaths in the eastern US - What is killing Blue Jays?