Wood Thrush with Nest (IMAGE) National Geographic Society Caption A male wood thrush feeds its young while wearing a miniaturized geolocator backpack. Fourteen wood thrushes wore the devices for the long trip to the tropics and back in groundbreaking research on songbird migration. The research was led by Bridget Stutchbury of York University in Toronto and partly funded by National Geographic. Credit Photo by Elizabeth Gow Usage Restrictions IMAGE IS FOR YOUR ONE-TIME EXCLUSIVE USE ONLY. NO SALES. NO TRANSFERS. 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.