great-tailed grackle or mexican grackle, quiscalus mexicanus. rincon de la vieja national park, guanacaste province, costa rica

bird greattailed grackle mexican quiscalus mexicanus costa rica birding birdwatching nature animal passerine rincon vieja national park wildlife wild feather black america wing tail beak blackbird central great tropical avian tailed latin ornithology habitat fauna songbird shine blue biodiversity themes sitting singing exotic wilderness great-tailed mexicanus guanacaste province medium-sized highly social bird