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FILE - In this Dec. 14, 2016, file photo, Montana Resources' Mark Thompson stands on the bank of the Berkeley Pit behind a hut used to watch for birds that try to land in the toxic water in Butte, Mont. At the Berkeley Pit, Montana Resources plans to keep up efforts that drive away almost all birds, in part to avoid a repeat of the negative publicity and community backlash that followed the 2016 bird kill, according to Thompson, the manager of environmental affairs. (AP Photo/Matt Volz, File)

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Ex-wildlife chief: Trump rule could kill billions of birds
March 31, 2020 2:15 p.m.

Ex-wildlife chief: Trump rule could kill billions of birds

BUTTE, Mont. (AP) — At a former open pit copper mine filled with billions of gallons of toxic water, sirens and loud pops from propane cannons echo off the granite walls to scare away birds so they don’t land.