Show notes
About 170 greater sage grouse gather on Wes McStay’s ranch in northwestern Colorado. They're here to mate in an open field of recently-planted rye. Biologists call such a gathering a lek , where male grouse perform an elaborate mating dance that involves inflating two yellow air sacs in their chests and then releasing the air with a bubbling pop. The national sage grouse coordinator for the U.S. Fish and Wildlife Service watches the spectacle, her gloved hands holding binoculars tightly to her