Joel G. Jorgensen and W. Ross Silcock | joel.jorgensen@nebraska.gov, silcock@rosssilcock.com | 28 December 2020 The Northern Flicker (Colaptes auratus) is a common species that has two field identifiable subspecies, the “yellow-shafted” flicker (YSFL) and the “red-shafted” flicker (RSFL). The problem and challenge for Nebraska birders is that YSFLs and RSFLs regularly interbreed and the intergradation […]