Unusual eagle behavior could stop development near Killdeer Mountains. A group of biologists are urging the federal government to stop shale development within North Dakota’s Killdeer Mountains Wildlife Management Area. They observed unusual group hunting activities by golden eagles, which are usually fiercely territorial. The biologists want to study the behavior and expressed concern that development would drive away the eagles, who are protected under the Bald and Golden Eagle Protection Act. Golden eagles are known to abandon their nests and their young whenever human activities get within ½ mile of their habitat, but the biologists claim well pads have been placed too close to nests and eagles have been electrocuted by power lines running to the drilling rigs.