Every year thousands of birds fly over Butte on their migrations. Engineers work diligently as part of the Berkeley Pit Waterfowl Protection Program to ensure these birds don’t come to rest on the Pit.
ABC FOX Montana reported on how the program achieves a success rate of 99.9% of bird deterrence:
Rifles, drones, bullhorns used to keep birds away from toxic chemicals at Butte’s Berkeley Pit
You can learn more about how birds are kept safe by visiting our Waterfowl Protection page.