How to keep chicken poop off feathers?

First,

I am pretty sure that bathing instructions can be found on this site. Silkies are a little different, as many use a hair dryer on their plumage, but other than that they are the same.

In general, the procedure is:

1. 3-4 tubs of warm water, 90-95 degrees, deep enough to submerge the bird's back, but not any deeper.
2. First tub use a mild shampoo. For white birds we use a dog shampoo meant for white dogs, but I am not sure it really makes a difference. Get the feathers soaked, clean, legs and feet, too. Be prepared for a puzzled look on their faces. I call it the "We are NOT ducks" look.
3. Second tub, clear water for rinsing. Rinse really well.
4. Third tub, water with 1/2 cup vinegar. This helps strip out the remaining soap residue.
5. Some people use a fourth tub that has water with a bit of glycerin in it. This helps restore some of the protective coating on the feathers. We have never done this.
6. Then pat dry with a towel. You will not get them very dry. If it is not a real warm day we will put our wet birds under a heat lamp for a few hours. However, it is best to avoid that and do this in Summer. Make sure that they are not in a draft.
7. If you have one of those "fancy" birds , fluff them up with a blow dryer set on very low.

Now, if you do not use a hair dryer it takes 24 hours for the chicken to be completely dry. Also, you do not want to do this too often, as it tends to take the oils off of the feathers. It takes 2-3 days for the chicken to distribute the oil from their oil gland back to their feathers.

BTW, it is great fun. Quite the spectacle. People seem to like watching it (we work in a museum where we washed their hens this summer. Kids love it.)

Now, keeping a white bird clean and white? I would like that answer as well