EAB Fuels Population Boom for Woodpeckers (IMAGE) USDA Forest Service - Northern Research Station Caption Data used in a study by scientists with the US Forest Service and Cornell University were collected by volunteers for Project FeederWatch, a Cornell Lab of Ornithology and Bird Studies Canada project in which volunteers count birds that visit feeders at backyards, nature centers, community areas, and other locations from November through early April. Credit Gary Mueller, courtesy of Project FeederWatch Usage Restrictions Credit to Gary Mueller of Project Feederwatch 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.