Red Phalarope (IMAGE) PLOS Caption A global analysis of variation in the range sizes of birds shows that range area does not follow a simple latitudinal pattern. Credit US Fish and Wildlife Service Usage Restrictions Please cite PLoS Biology as the source. 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.