FlareHeart

Ya it could be a Grackle. Does it move the injured wing in any way normally? If it can’t move the wing at all normally it may not heal well without medical intervention. Unfortunately their wings are very delicate. It sounds like you’ve done all you can in terms of phoning vets and rehabs, so I can’t really help much there, but just keep up what you are doing and keep checking with the rehabs that take small birds. Either the wing heals on it’s own or not, but either way it feels like you are doing all the right things. I hope it works out!

The video conveniently leaves out that they should NOT be kept as pets! They love their families and are undomesticated wild animals! Leave them in the wild!