Leasing rights on western lands with some of the world’s highest densities of sage grouse were sold this week to energy developers for as little as $2 an acre — the result of a recent Trump administration directive to roll back Obama-era protections for the iconic bird. Thirty-one parcels in Wyoming containing 57,800 acres of prime sage-grouse habitat are among those being auctioned online by the federal Bureau of Land Management. Conservationists call the area the “golden triangle” because of its importance for the species, which has suffered a sharp decline in the past 15 years as oil and gas...