Evening Grosbeak (Coccothraustes vespertinus), a Special Concern species in Wisconsin, primarily breeds in coniferous forests across northern-tier counties. Regional populations have declined over recent decades for unknown reasons. Nesting success may be closely tied to abundance of spruce budworms, though they also feed on a variety of tree seeds, fruits, and buds. The recommended avoidance period is May 10 - July 31.
