Two wildfires raging overnight on Montana’s Blackfeet Indian Reservation burned thousands of acres, forced scores to evacuate and destroyed several buildings, officials said early Thursday. Fueled by strong winds, the two blazes started around sundown Wednesday and together had grown to at least 45,000 acres by 4 a.m. MST Thursday. At least 300 people were forced to leave their homes, and officers were working to evacuate additional residents in the fires’ eastward path.