Attwater's prairie-chicken is a highly endangered subspecies of the greater prairie-chicken that is native to coastal Texas and formerly Louisiana in the United States.

The greater prairie-chicken or pinnated grouse, sometimes called a boomer, is a large bird in the grouse family. This North American species was once abundant, but has become extremely rare and extirpated over much of its range due to habitat loss. Conservation measures are underway to ensure the sustainability of existing small populations. One of the most famous aspects of these creatures is the mating ritual called booming.