Thanks for the advice, Chicken_Pauper.
Well, Tracydr, her legs are fine, except that she walks a little stiffly, and her scales look normal. I could get you a picture though, like you said, just to be sure. I'll take it in the morning (it's nighttime right now) if I can find the camera.
My Rhode Island Red hen, Victoria, is a little strange. Just lazy? I don't know. She's two and a half years old and is the average weight. But her legs and toes seem a little stiff and hard-muscled. Maybe it's just my imagination, I dunno. Victoria doesn't move as much as the other chickens and...