Thick-billed Green Pigeon (IMAGE) University of New Mexico Caption Pigeons, including the Thick-billed Green Pigeon, were dominant among bird-building collision mortalities for resident birds. Credit University of New Mexico, David Tan Usage Restrictions None 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.