There are two birds known as a Prairie Chicken with different scientific names: * Greater Prairie Chicken: (tympanuchus cupido) * Lesser Prairie Chicken: (tympanuchus pallidicinctus)

The greater prairie chicken is a bird that belongs to the grouse family. Its classification is that it belongs to the class Aves, order Galliformes, family Phasianidae, and species Tympanuchus cupido. The greater prairie chicken is found in prairie regions of North America.

they definitely eat worms or producers

There are 2 versions the Lesser and Greater Prairie Chicken Wikipedia has articles on both Lesser: http://en.wikipedia.org/wiki/Lesser_Prairie_Chicken Greater: http://en.wikipedia.org/wiki/Greater_Prairie_Chicken They say it is a distant relative of the Grouse.

It's the North American Heath Hen, related to the Greater Prairie Chicken, but not an actual chicken.