Is Corn's toe like this (the toe on the far right) or is it the nails at the end of the toe that is overgrown?
If you let us know where you are, then there are people all over the US (and several other countries) and I'm sure we'd be able to find Corn a lovely home with lots of space and friends. The vast majority of people here keep their chickens as pets, so Corn can live out it's life peacefully too.