Some prairie chickens are more common than others but the Attwater's is near extinction. Once found in abundance along the Texas and Louisiana coastal prairies, today their very low numbers make them one of the most endangered birds. The males perform an elaborate courtship ritual that includes inflating yellow air sacs to release a booming sound that can be heard across the grasslands. It's very hard to see the Attwaters at the refuge near Eagle Lake but Fossil Rim Wildlife Center is working to breed chickens for re-introduction to the wild and you can often catch a glimpse of the Attwaters on their behind the scenes tour.
Attwater Prairie Chicken Festival is held the second weekend in April (unless it falls on Easter weekend) in Eagle Lake, TX. Other locales hold celebrations for other types of prairie chickens, including the greater and lesser prairie chickens, throughout the spring.
Note: I received a review copy of this book from the publisher, Peachtree Publishers.