The National Wildlife Health Center (located in Colorado) has issued a statement on a developing situation of unexplained bird sickness and mortality affecting multiple species of birds in our area. Although this initially seemed to be a case of a small number of isolated instances within the immediate Washington, DC., area, reports of a large number of birds at a time appearing to be sick (e.g., crusty eyes, lethargy, inability to fly or walk) or found dead in residential neighborhoods have expanded significantly in recent weeks and now encompass a larger multi-state region. Read more here: https://www.pwcva.gov/department/virginia-cooperative-extension/natural-resources
Related news story from @NBCWashington: https://www.nbcwashington.com/news/local/birds-dying-from-mysterious-disease/2725165/