Are there any gouldian finch experts here to whom I could send a photo?

one of my finches is demonstrating a very odd posture, with him hunched over and his head stretched out. He is eating and drinking. I have him separated. he did this a couple of weeks ago but it seemed to resolve itself and all of a sudden it's worse. It's Sunday so don't even suggest taking him to the vet (today) the on call avian vet is two hours away. (I know, it's really stupid) I think his wing may be broken or dislocated, it is at a weird angle. I'd love to send a photo and see if anyone can offer suggestions as to what may be wrong with my baby.