Doesn't cluck like a chicken.

Sage grouse have unexpected vocal anatomy. Though they belong to the group of galliform birds that includes chickens, sage grouse have a double-barreled sound source with the capacity to produce two sounds at once, Alan Krakauer of the University of California, Davis reported on August 15. He and colleagues found that Japanese quail, the greater prairie chicken and the sharp-tailed grouse also have that ability.