Officers say the primary golden eagle in Yellowstone National Park to be fitted with a monitoring system has died of lead poisoning.
Golden eagles typically scavenge through the fall and winter. Scientists suspect the adult feminine might have eaten carrion containing lead bullet fragments.
Some advocacy groups have referred to as for hunters to use bullets made from copper to help forestall such deaths.
Eagle scientist Todd Katzner with the U.S. Fish and Wildlife Service referred to as the dying “gut wrenching.”
He says researchers have been nonetheless capable of collect useful information about the eagle and its movements earlier than it died.
Golden eagles are one among North America’s largest birds, with a wingspan that may prime 7 ft (2.1 meters).