On the inside, turkey vultures' intense stomach acids can kill the microbes that cause botulism, anthrax, cholera, tuberculosis, salmonella, and rabies. How appropriate that the birds' scientific name—Cathartes aura—means "purifying breeze." Their digestive system is so powerful that it even destroys the DNA of their food. As of March 27, I still haven't seen a turkey vulture in the Northwoods, but soon they'll be showing up on the wind and helping us out with a little spring cleaning!