Scott collaborated with researchers from Cornell, Ohio, and Pennsylvania to investigate a tip from a birder about an odd sighting. Read the full paper here. /asmagazine/2018/12/03/declining-warblers-making-best-bad-situation Graphic shows predicted family tree of warblers leading to the three-species hybrid. Blue-winged, Golden-winged, and Brewster's Warblers by Liz Clayton Fuller; Chestnut-sided Warbler from...