Aves, Call, Communicate, Courting, Displaying, Grackle, Grackles, Great tailed Grackle, Great-tailed Grackle, Irridescence, Perched, Quiscalus, Quiscalus mexicanus, Song, South Padre, South Padre Island, United States, Vocalisation, Vocalization, adult, adults, america, american, animal, animals, big, bird, birds, black, blackbird, blackbirds, calling, color, communication, court, courtship, day, daytime, display, fauna, image, irridescent, male, males, natural world, nature, north america, one, outdoor, outdoors, perching, photo, portrait, rgv, rio grande valley, singing, single, sings, south, southern, southwestern, texan, texas, usa, vertebrate, vertebrates, vertical, vocalizations, vocalizing, wild, wildlife