a thickset finch with a crossed bill adapted for extracting seeds from the cones of conifers. The plumage is typically red in the male and olive green in the female.
Genus Loxia, family Fringillidae: four species, in particular the widespread red (or common) crossbill (L. curvirostra)
crossbill in other Oxford dictionaries
Definition of crossbill in the US English dictionary
