To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/127291" allowfullscreen></iframe> Swallows at a campus bike center learn to use motion detectors to get in and out. via YouTube.
