Horse Feathers is the nom de guerre of Justin Ringle, a soft-singing, literary songwriter whose work recalls Bonnie “Prince” Billy, Hem and their alt-Americana ilk. Raised in Idaho, Ringle made his way to Portland in 2004 and soon found himself partnered with noted composer and sometimes Efterklang member Peter Broderick, whose reverent orchestral additions to Ringle’s solemn, woodsy songs helped set him apart from the hordes of likeminded Northwestern coffee-house crooners. Ringle and Broderick would go on to release two worthy LPs together as Horse Feathers, even integrating Peter’s sister Heather (who is equally revered in modern classical circles) into the band as a cellist for a time. The Brodericks have since moved on, but if the Feathers’ third album, Thistled Spring, is any indication, Ringle and his rotating cast of pastoral players have suffered naught. Anaïs Mitchell opens.