This product works very well for sounds, but be warned.
It stains and is not able to be removed. If applied to the comb, chicken may shake their head and spray the blue solution all over your clothes and skin.
Cons: Wear gloves or it will stain you for a while
This is a necessity for anyone's emergency/chicken medical kit. If you have a would that needs healing it helps keep other hens from repeatedly pecking the affected spot. It can be use just for so many things. Get a bottle you won't regret it.
