Zool. [ad. F. conirostre, ad. mod.L. cōnirostris, f. cōnus cone + ROSTRUM beak, bill.] A member of the Conirostres, a group of insessorial birds having a conical bill.
1842. Brande, Dict. Sci., Conirosters, Conirostres including those which have a thick robust conical beak, as the crows and finches.
1847. in Craig.
So Conirostral a., conical-billed.
c. 1840. Swainson is cited by Webster 1864.