https://www.wcbu.org/tags/metalmark-butterfly metalmark butterfly en-US Copyright Tue, 09 Jun 2015 17:18:28 GMT https://www.wcbu.org/state-news/2015-06-09/scientists-trying-to-revive-endangered-butterflies-in-elgin Scientists who tried to reintroduce a rare butterfly into a swampy Elgin forest preserve two years ago say they can't find any colonies of the butterfly.… Tue, 09 Jun 2015 17:18:28 GMT https://www.wcbu.org/state-news/2015-06-09/scientists-trying-to-revive-endangered-butterflies-in-elgin Associated Press