https://phys.org/news/2018-07-north-carolina-red-wolves-real.html

But another provision seems aimed squarely at the red wolf: Is it a distinct species or, as critics in North Carolina have long contended, a hybrid of gray wolves and coyotes?

The administration's proposal says species already on the endangered list can be removed if new information or analysis shows they aren't a "valid taxonomic entity." A study of the red wolf is already underway.