Purple Martin Sings Low Note
But some conservation officials think there are some more reasonable explanations.
"More than likely what we have is a situation where a homeowner has overapplied pesticide which has caused the birds direct contact and the individuals have been found dead," explained John Schulz of the Missouri Conservation Department.
Schulz says people shouldn't worry about dead birds. But he did say if a large number turn up dead in your yard, you should call the conservation department.