Just hatching a few chicks. One of the ones that hatched today injured its back, a strip almost the length of it's back and quite wide for such a little bird. I am not sure what happened - did this while I was having lunch. It is fine in itself and it doesn't seem bothered by it. I have separated it from the older ones as I am worried that they will attack and make it worse.
I have some tar spray that I use on the hens if they do anything and hurt themselves, would this be ok to use on such a young healthy bird and then I can put it back with the others? I don't want to cull it as there is nothing else wrong with it.
Any advice is welcome.