@birdsandbats This bird was inside one of the hornbill exhibits near the entrance, so I suspected that this might just be a wild grackle that found its way in.
@BerdNerd If this is a wild grackle, then it is Great-tailed Grackle (Quiscalus mexicanus). If it captive, then it honestly could be almost any of the extant grackle species. If it is captive, the only ID I can confidently give you is that it is not Common Grackle.
These are just wild great-tailed grackles that find their way into these outdoors-facing enclosures. When I saw them they were behaving like wild birds that got into an enclosure by accident.
