Blue Jays are one of the primary species affected by the mystery pathogen, along with fledgling Common Grackles, European Starlings, and American Robins.
The US Geological Survey’s National Wildlife Health Center (NWHC) and the Southeastern Cooperative Wildlife Disease Study (SCWDS) are currently working together to diagnose a mysterious ailment that has affected some fledgling songbirds – mostly Blue Jays, Common Grackles, European Starlings, and American Robins – in some Mid-Atlantic portions of the United States. To date, none of the labs have been able to identify the cause of the birds’ deaths.
After rigorous nationwide testing, the NWHC and its collaborators published a report that rules out several common bird pathogens, including West Nile virus, avian influenza, Newcastle disease, herpes viruses, poxviruses, salmonella, chlamydia, and trichomonas parasites.
While it’s extremely helpful to narrow down the list of potential pathogens, investigators are still searching for leads as to the cause of the bird deaths in areas of the Mid-Atlantic states from New Jersey to Virginia, plus West Virginia, Kentucky, and Indiana.
With such a broad spectrum of bacteria, fungi, toxins, and viruses to test for, it may be a while before researchers have a definitive answer. Nicole Nemeth with the SCWDS, said it’s even possible that the disease could be caused by multiple pathogens. “There’s really still a lot of possibilities,” she explained, “Unfortunately, it just takes time.”
Stopping the Spread
Until then, concerned citizens in affected regions can take steps to protect birds in their own yards. “The best thing we can recommend is taking down your bird feeders,” wildlife researcher Christine Casey said. Once down, it’s important to clean feeders and birdbaths with a 10 percent bleach solution to kill any pathogens, followed by a thorough rinse and drying time. Keeping feeders and birdbaths clean, of course, is standard procedure for most birders anytime, including the use of very diluted 10 percent bleach with thorough rinsing afterward. Read more