Backyard Bird Feeder (IMAGE) Virginia Tech Caption A dark-eyed junco, an American goldfinch, and a house finch feed on sunflower seeds on a snowy day. Bird watchers report that cold weather influences how much they feed birds, more so than time or money. Photo by Cynthia Raught. Credit Virginia Tech 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.