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!

From the top of a leafless oak tree commenced a steady stream of whistles and warbles that sounded as if an entire flock of flickers, vireos, titmice, cardinals, and wood thrushes were all taking turns. Just one robin-sized bird perched there, though. Brown thrashers are "mimics" who increase their repertoire of songs and show off their skills to the ladies by copying from other birds. Across the Southeast are brown thrashers who will soon be migrating north, just a little bit behind the loons. Their concert tour continues! Plan to attend one of their performances at dawn in your local shrubbery.

Scientists used to think that almost all our Common Loons spend the winter on salt water. From across the northern lakes, loons migrate to both coasts and the gulf each fall to avoid ice-up. Now we know that more than 100 loons spend each winter on a large freshwater lake in South Carolina. In this relatively small area, it becomes easier to carry out research on loon behavior.