GREENVILLE, ME – JANUARY 5: The Department of Inland Fisheries & Wildlife uses these GPS-enabled collars to track moose for a part of a long-term study they hope will give them data regarding calf-mortality rates along with other data. The collars are lined up in a bin waiting to go on a helicopter out of the INF’s Greenville office Wednesday, January 5, 2016. (Photo by Gabe Souza/Staff Photographer)