Rare California Condors Decimated by Deadly Avian Flu Outbreak

A highly pathogenic strain of avian influenza has killed 20 California condors, nearly 20% of the population in Arizona and Utah.
The virus is responsible for the deaths of bald eagles and millions of domesticated birds.
California condors were nearly driven to extinction but captive breeding programs helped populations rebound until now.
The deaths deal a major blow to recovery efforts for the endangered species.
The spread of the avian flu among condors is aided by their migration patterns between Arizona, Utah and California.