Passenger Pigeon (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption The extinct passenger pigeon, Ectopistes migratorius, was the only species in its genus. Credit L. Brian Stauffer, U. of I. News Bureau. Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: L. Brian Stauffer, U. of I. News Bureau. Share Print E-Mail 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.