I had a hen get her foot wedged between two rods on my chick cage that I had put in the coop to get the new chicks aquainted with the flock. Anyways, by the time I found her she was upside down hanging by the foot, in shock and had given up trying to free herself. It took some work but I manged to free the foot (after visions of cutting it off and having a peg legged hen). It was slightly cut and bleeding a bit but I let it go. she limped a lot for a day or two and part of it got swollen and a little black but she never showed any other signs of problems. She ate good and kept up with the flock. Months later she is just fine. So keep an eye on her, and she may be OK.
To the person who replied about not eating her. I don't know anything about that breed of snakes, but if it is poisonous; wouldn't eating the eggs be a problem too? I had a hen on antibiotics for a while and was told to keep her separate and not eat her eggs. You may want to do that with your injured hen also.
