The Pine Grosbeak is a large finch. Males are mostly red with gray underparts, black wings, and two white wing-bars. Females are mostly gray with some yellow on their heads and backs. Their wings are black with white wing-bars similar to the males. Both sexes have black tails, and their bills are short and conical. First-year males typically have rusty heads and rumps, but are not as red overall as mature males.