By Savanna Tomei Madison SHARE What You Need To Know A mysterious illness was first spotted in April on the East Coast The illness has spread to Midwest, not in Wisconsin yet It causes crusty eyes and neurological symptoms, preventing birds from walking/flying Experts recommend taking down your bird feeders to prevent spread to Wisconsin The outbreak of this sickness started on the East Coast, where thousands of birds were dying en masse. Survivors showed symptoms like crusty eyes and neurological oddities, causing them to be unable to walk or fly and giveing them a contorted appearance. Staff member at an Ohio wildlife rescue holds a bird with the new mysterious illness. The bird's neck is bending backward due to neurological symptoms.