New World blackbird, a species of bird found mainly in North and South America, has several synonyms commonly used in ornithology. One such synonym is the troupial, a brightly colored blackbird found in parts of South and Central America. Another synonym is the bobolink, known for its distinctive songs and long migration routes. The red-winged blackbird, with its red and yellow epaulets, is also a close relative of the New World blackbird. The common grackle, a larger blackbird with iridescent feathers, and the brown-headed cowbird, known for its brood parasitism, are also synonyms. While these birds may have different characteristics, they are all considered part of the New World blackbird family.