Western Bluebird Nesting Box in Gas Field (VIDEO) Florida Museum of Natural History This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption This western bluebird returns to its nestlings with food, as a natural gas compressor drones in the background. Researchers think this noise acts as an 'acoustic blanket,' muffling audio cues birds rely on to determine whether their surroundings are safe. Credit Nathan Kleist Usage Restrictions Please credit Nathan Kleist 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.