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An unknown pathogen is sickening and killing birds in states outside of New England. In a precautionary effort to stop the spread by reducing contact at communal areas, MassWildlife has issued an advisory that residents take down birdfeeders and birdbaths, and report any dead birds to MassWildife (Marion Larson; firstname.lastname@example.org, or (508) 389-6311).
In late May, wildlife managers in Washington D.C., Maryland, Virginia, West Virginia, and Kentucky began receiving reports of sick and dying birds with eye swelling and crusty discharge, as well as neurological signs. More recently, additional reports have been received from Delaware, New Jersey, Pennsylvania, Ohio, and Indiana. While the majority of affected birds are reported to be fledgling common grackles, blue jays, European starlings, and American robins, other species of songbirds have been reported as well. No definitive cause(s) of illness or death have been determined at this time.
While there is always an increase in reports of dead birds at this time of year due to natural high mortality rates of young birds, MassWildlife is encouraging the public to report any observations of sick or dead birds (with unknown cause of mortality) as a precaution to help track this widespread mortality event. However, the mystery disease is not known to be in any of the New England states at this time. It is not necessary to report dead birds where strong evidence links the mortality to collision with glass or vehicles or predation by cats. Use this online form to report observations and upload photos.
As another cautionary measure, MassWildlife and Mass Audubon are also recommending the public to stop using bird feeders and bird baths at this time. Birds congregating at bird feeders and bird baths can transmit diseases to one another. MassWildlife, as well as other affected states, recommend taking the following precautions:
At this time of year, birds are able to find plenty of natural foods on the landscape without needing bird seed. MassWildlife advises that seed from bird feeders can draw the unwanted attention of squirrels, chipmunks, turkeys, mice, rats, and even black bears. Wild animals that become habituated to human-associated foods like bird seed can become a nuisance, spread disease, and cause problems. You can learn how to attract birds to your yard naturally throughout the year using native plants. Get tips here.