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Genus Agelaius
Agelaius humeralis - The Tawny-shouldered Blackbird is a species of bird in the Icteridae family. It is found in Cuba, the Dominican Republic, Haiti, and the United States. Its natural habitats are subtropical or tropical dry shrubland, pastureland, and heavily degraded former forest.
Red-winged Blackbird - The Red-winged Blackbird is a passerine bird of the family Icteridae found in most of North and much of Central America. It breeds from Alaska and Newfoundland south to Florida, the Gulf of Mexico, Mexico, and Guatemala, with isolated populations in western El Salvador, northwestern Honduras, and northwestern Costa Rica. It may winter as far north as Pennsylvania and British Columbia, but northern populations are generally migratory, moving south to Mexico and the southern United States. The Red-winged Blackbird is sexually dimorphic; the male is all black with a red shoulder and yellow wing bar, while the female is a nondescript dark brown. Seeds and insects make up the bulk of the Red-winged Blackbird's diet.
Tricoloured Blackbird - This highly social and gregarious bird forms the largest colonies of any North American landbird, with a single breeding colony often consisting of tens of thousands of birds.
Yellow-shouldered blackbird - The nominate form of the Yellow-shouldered Blackbird was first described from Puerto Rico and Vieques in 1862 by Philip Sclater as Icterus xanthomus. The species is closely related to, and possibly derived from, the Red-winged Blackbird . The Tawny-shouldered Blackbird , a species from Cuba and Haiti, is morphologically intermediate between A. xanthomus and A. humeralis. Until recently, some authors considered A. xanthomus as a subspecies of A. humeralis. The 1983 American Ornithologists' Union edition considered A. xanthomus, together with A. humeralis, a superspecies. The main physical difference between A. xanthomus and A. humeralis resides in their bills, with A. humerali's being broader toward the base. The recognized subspecies A. x. monensis, or Mona Yellow-shouldered Blackbird, was described by Barnes in 1945 from the islands of Mona and Monito.