As you can see my white OEG hen is flithy, she decided to make her nest under an old car... Has anyone ever given a chicken a bath? What do you use? dish soap? shampoo? She needs help.
If your chicken has oil/grease on it then I would try Dawn Dishwashing Liquid. I've seen commercials showing it being used on birds caught in an oil spill.
Dish soap is highly caustic... it will rob their feathers of their natural oils and they will fray... I'd try some type of shampoo first, maybe a kind for pets
I'd use pet shampoo before baby shampoo. It's actually considered too harsh for small pets and young puppies or kittens so I wouldn't use it on a bird. Haven't tried washing a bird but normally for such situations I use a horse shampoo like rio vista. So far it works well on guinea pigs, baby hamsters, gerbils, sick kittens, and my dog aside from the horses. Much milder than any human shampoo or even most kitten and puppy shampoos.