When you spy a Prothonotary Warbler through a pair of binoculars, its yellow feathers are so bright they practically glow. This show-stopping coloring is responsible for their cumbersome appellation—they're likely named after high-ranking scribes in the Catholic Church called prothonotaries, who wore yellow cloaks to signify their VIP status. Their impressive title hasn’t stopped populations of these creatures, which are native to the southeastern U.S., from falling off in recent decades. Louisiana, which supports a quarter of the Prothonotary Warblers’ global breeding population, has seen a 40 percent drop in their numbers over the past 50 years. To figure out how to stop the decline, Erik Johnson, director of bird conservation for 吃瓜黑料 Louisiana, helped establish the Prothonotary Warbler Working Group in 2014, an initiative that includes the 吃瓜黑料, Virginia Commonwealth University, Arkansas State University, Ohio State University, and about 20 other...