I have a 3 month old Cuckoo Marans I've had since she was a chick. She didn't limp when she first came here but right after putting her in the coop, she began to limp badly. I've checked her feet, legs, etc. and all I found was a bump on the inside of her knee on the leg she's limping on. I decided to give her some time but it is now two weeks later and she still limps. She eats, moves around and otherwise seems normal. Any ideas? I didn't think it was broken upon first examination but it has gone on long enough now that I'm suspecting it may be. Is it too late to get a vet involved? This is new territory for me although I've had chickens for 10 years so any suggestions or comments are welcome.