Crane #7 was one of three cranes to get the new backpack transmitters used this year for the first time. This new way to track uses new technologies that make batteries last longer. "There are negatives to attaching anything to a free-flying bird, but the risk of injury is low, and there is a lot to be learned," writes Joe Duff.
On September 26, the backpack transmitters were removed from all three birds wearing them: 2-14, 7-14 and 9-14. The decision was made after the team had evidence that the backpack transmitters were inhibiting the cranes' normal flight ability. The next day, all sixcranes flew just great, and for a duration of 20 minutes and 9 seconds. Go cranes!