Hello, I had one duckling (either Ancona or khaki - not sure which) hatch out with a contracted leg. Unfortunately, I found her with her body mostly out of the shell but her body was stuck inside of the membrane and it had dried on, not allowing her to leave the egg fully. I've read only a slight bit about this type of thing and do not know how to treat it and really am not 100% sure if it is what it is. Does she have a slipped tendon? Her sister ducklings are flourishing and have nearly doubled in size, and I feel extremely guilty that I haven't been able to fix this. I've been doing range of motion with her leg and trying to extend her leg. She isn't happy each time I do this. Would appreciate any help on this. I didn't include a picture because her foot is literally just contracted up to her belly. All of the bones are where they are supposed to be. If anyone needs a picture I can get one, but I didn't have the time this morning. Thanks for your help.