New World blackbird noun1 •Certain blackbirds found in the New World in the genera of family Icteridae, to wit, Xanthocephalus, Nesopsar, Agelaius, Dives, Ptiloxena, Euphagus, Gymnomystax, Amblyramphus, Curaeus, Anumara, Gnorimopsar, Oreopsar, Agelasticus, Chrysomus, and Xanthopsar. formsNew World blackbirds