Sleeping Bird (VIDEO) Cell Press This video is under embargo. Please login to access this video. Caption This video shows a bird sleeping with the head pointing forward that then tucks its head in its scapular feathers. The thermal imaging video shows a noticeable decrease in the maximum surface temperature. At the bottom of the video, a cursor shows the variation in the maximum temperature, which drops substantially when the bird changes to the Tucked posture. Credit Ferretti et al./<i>Current Biology</i> Usage Restrictions Credit Required 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.