Lesser prairie chickens (IMAGE) Purdue University Caption Artist rendering of lesser prairie chickens. Male (left) and female in a prairie setting. Biologists originally classified lesser and greater prairie chickens as two species. New research indicates they may belong to the same species. Credit Purdue University/Gabriela Sincich Usage Restrictions News organizations may use this image in reports about the work of Purdue University's Andrew DeWoody and his associates. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.