ScienceNew tracking device for birdsTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceBrigitte Osterath01/22/2016January 22, 2016Researchers often use GPS to track birds, but they can be too heavy for some species. Israeli researchers have now come up with a lighter alternative, as Brigitte Osterath reports from Hula Valley in Israel.https://p.dw.com/p/1HiLVAdvertisement Report by Brigitte Osterath, Hula Valley