According to a handful of environmental groups, the answer is a definitive yes. And after the U.S. Fish & Wildlife Service (“FWS”) issued a 90-day finding concluding in the alternative, earlier this week three environmental groups decided to take FWS to court. The lawsuit was filed by the Buffalo Field Campaign, Friends of Animals, and Western Watersheds Project. According to the press release issued by one of the environmental groups, FWS “applied the wrong evidentiary standard, and disregarded evidence of factors that imperil the unique and distinct subpopulations of bison roaming the Northern and Central ranges of the Yellowstone ecosystem.” The complaint asks that the court order FWS to rescind the negative 90-day finding and proceed directly to a 12-month status review of the Yellowstone Park bison. The case is currently pending in the United States District Court for the District of Columbia. Our coverage of the 90-day finding is available here.