Great-tailed Grackle (Quiscalus mexicanus) at Cloisters Park in Morro Bay California 2016.
Great-tailed Grackle (Quiscalus mexicanus) A big, brash blackbird, the male Great-tailed Grackle shimmers in iridescent black and purple, and trails a tail that will make you look twice. The rich brown females are about half the male’s size. Great-tailed grackles have an unusually large repertoire of vocalizations that are used year-round. Males use a wider variety of vocalization types, while females engage mostly in "chatter". Because of their loud vocalizations, great-tailed grackles are considered a pest species by some.