last night something got into my pen and ate 1 chick and left a silkie chick witha little cut so this morning i put them in their old brooder(by them i mean my silkie chick and another regular chick). when i got home from school i checked on them and the silkie had i huge hole in its back about 1cm deep and wide, its side was like inflated with air. i gently pressed the bubble and it deflated then i cleaned up the wound with peroxide and a qtip. any advise on what to do now?
