Bathed a hen for the first time

I have just tried bathing my bantam, Black Beauty, in bowl of warm water and she loved it.  She relaxed and seemed quite happy to stay there.  I took her out after the water cooled off a little and  towelled her dry then put her on the perch. 
I was rather scared to try this but the poor hen has rather a grungy backside and it needed cleaning.  Normally she won't let my anywhere near her but tonight I struck just as the hens were settled into roosting and she seemed not to mind at all.
Apart from the grungy backside she seems to be eating , drinking and moving about fine.  I can't identify which poohs are hers (apart from the ones stuck to her backside).

sometimes they end up with pooh on their rear end feathers just because they have too much fluff there and don't drop their fluffy knickers down far enough, it doesn't mean there is anything wrong  .
Always make sure their feathers are properly dry before you put them back out (you can use a hairdryer on a low heat setting).

A few of my girls have ended up having a warm bath for one reason or another & they have all seemed to have enjoyed it. The last hen was a skittish leghorn with a prolapse & she just sat down in the in sink and relaxed.

My Light Sussex really enjoys a warm bath.