We have two 4 month old chicks. My 4 year old son took them out of their coop yesterday (as he does everyday) to let them run the yard. About 10 minutes later I saw my son holding "Runny" upside down by her legs. She has been unable/unwilling to walk since. I don't feel any broken bones, but she is lethargic. I'm not sure if she's drinking or eating. Se did move around a bit last night, but I never actually saw her walking. I'd just notice she'd had moved a few inches each time I checked in on her. I never saw Runny before the upside down incident to know if she was not well before that. She slept inside last night in a box and appears pretty much the same today. I feel just sick about this. I know my son didn't mean to hurt her. He's always displayed such love, albeit a lot of curiousity too! Any thoughts?