May 14, 2013 at 6:44 am
ST. PAUL, Minn. (KNSI) The Minnesota Department of Natural Resources has started an aerial survey of sandhill cranes in an area from Crookston, north through Thief River Falls to the Canadian border.
The survey will count both nesting pairs and nonbreeding cranes in the Minnesota hunting zone to better monitor breeding populations.
It’s timed to count the cranes while most are incubating eggs in their nests. Because the gray cranes are difficult to see, researchers will use the DNR aviation program helicopter, which allows them to fly at a low level.
Flights, which will consist of four-kilometer-square plots, should be completed within one or two weeks.
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