Birds are acting blind when approached and dying by the hundreds. Scientists don't know why.

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Jun 22, 2021 Birds are acting blind when approached and dying by the hundreds. Scientists don't know why. Wildlife officials in at least six states have reported birds displaying crusty or puffy eyes, neurological signs of seizures and an inability to stay balanced. Hundreds have turned up dead. An avian biologist in Kentucky said the cause is still unknown. Read More Get the NBC News Mobile App Follow NBC News Check out all of NBCNEWS Newsletters here. Update Preferences | Unsubscribe | Contact | Privacy Update Preferences Unsubscribe Contact Privacy