Here in northern Minnesota there are 2 species of Crossbill. The White-winged Crossbill and the Red Crossbill
The male in both species is colored red. The White-winged is more of a rosy red while the Red Crossbill is more of a brick red. Both species have the distinctive crossed bill which they use to extract seeds from the cones of conifer trees.
The females are not red, but are mostly a rusty greenish, yellow color. There are many variations in the females and first year males.