The National Wild Turkey Federation (NWTF), in conjunction with Virginia wildlife biologist Gary Norman, has kicked off a multi-year study to learn more about gobbling behavior. Norman and some of his colleagues are designing a special backpack transmitter and neck collar that they will strap to turkeys (domestic ones at first and, if all goes well, wild ones next year). The device will record when and where turkeys gobble, and help biologists figure out what role weather, hunting pressure and other factors have on gobbling activity. The study's implications go beyond hunting. "From a scientific standpoint, this will help us better interpret gobble counts used for population survey purposes," says Robert Abernethy, a spokesman with the NWTF.