Researchers with Toucan (IMAGE) Smithsonian Caption Researchers Reinhard Vohwinkel, left, and Martin Wikelski attach a high-tech backpack to a wild toucan. The backpacks are designed to fall off the birds after 10 days. Credit Photo courtesy of Roland Kays Usage Restrictions Please include the photo credit information. 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.