Just leave them alone - I know its hard. Give them at least till day 25 before you go in and start messing around. If you start hearing peeps, leave them alone - they will MOST LIKELY be fine with out any help. I know its hard, but after trial and error, I've learned that the hands-off...
Hi (I'm new here)
My 3 ~6wk old chicks all developed this today. I did feed them organic chick starter (didnt switch brands, same as allways). They've had nothing else other than free range in the garden (no bad plants).
It almost looks like a tumor, located upper right shoulder with chest...