(a.) of or pertaining to a bird or to birds.

Roman-nosed altricial anserine anserous aquiline-nosed avian avicular beak-nosed beak-shaped beaked bill-like bill-shaped billed birdlike birdy clawlike columbine crookbilled crooked crooknosed dovelike down-curving goosy hamate hamiform hamulate hawklike hooked hooklike nesting nidicolous nidificant oscine parrot-nosed passerine psittacine rasorial rhamphoid rostrate rostriform unciform uncinate unguiform