Rock Pigeon (IMAGE) University of California - Santa Barbara Caption Rock pigeons, photographed in Manhattan, are one of only four bird species that are cosmopolitan, occurring in more than 80 percent of the cities in the global study. Credit Zac Peterson Usage Restrictions None License Licensed 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.