My neighbor( an elderly woman who loves my chickens) adopted an oven stuffer roaster that appeared in her yard one day. It must have fallen off the truck. I know there is a difference between a commercial purdue chicken and a farm fresh cornish x in how they were bred and all, but.. does anyone have an idea how big this bird might get? Do you think they stop growing at some point, or do they continue to grow and grow until their heart gives out? She's had him for maybe a month now- he's probably about 4 months old .He is happy and healthy, but huge. His legs are extremely thick, which is good because he needs strong legs to support himself. He can walk fine and can even run( it looks funny and he can't run far, but he can run). I would estimate him to be around 18 pounds right now. I have already warned her that he probably won't live long, or might need to be put down, and she understands that, but she just adores him and wants to keep him. This is not a discussion about his life- believe me, if it best for him she will accept him being processed or put down. All I am asking is for advice/suggestions/knowledge on what to do to help him have a good life, no matter how short. Does anyone have any knowledge or experience on a commercial chicken? Will he stop growing soon?