Scott Weber of the School of Veterinary Medicine and Penn’s Wildlife Futures Program said wildlife veterinarians are concerned about the numerous reports of sick or dead songbirds in the Mid-Atlantic region. “It does seem to be spreading through the U.S. pretty quickly, and spreading to a fairly wide geographical area,” he said.
https://www.wesa.fm/environment-energy/2021-07-07/more-than-1-000-cases-of-mysterious-bird-disease-reported-in-pennsylvania WESA Radio (Pittsburgh)