Tres Osos means “three bears” in formal Spanish. In a Duluth translation, Tres Osos means three big, bearded hombres that can play ferocious bluegrass, country and folk music. The group features Nicholas Klee, Ian Kvale and Tim Leutgeb sharing vocal, mandolin, guitar, banjo and bass duties. They perform at bars and breweries all over town but favor woodsy, lake country watering holes where they can fish all day and romp all night — just like Yogi and his pals. The band’s Homegrown performance is likely to include guest guitarist Colin Mullen, violin player Clif Nesseth and drummer John Lamar.