What’s at stake is potentially the most far-reaching and impactful decision to ever come from the U.S. Fish & Wildlife Service, the federal agency charged with protecting imperiled wild species. The sage grouse, which is distributed over 11 Western states, is in a widespread and continuous decline over much of its range. That dynamic has caused the bird to be a candidate for listing for the last decade, but in previous reviews, the Service had concluded that it is “warranted but precluded” from listing due to other, more imperiled species. That could change in September, when the USFWS is scheduled to release its latest review of conservation strategies concerning sage grouse. One of the outcomes might be a decision to list the greater sage grouse as a federal endangered species.