I have 4 Buff Orpingtons, 2 Rhode Island Reds, a rooster who is a Partridge Plymouth Rock, and 2 Silkies. For the past few weeks the Silkies disappear at night and do not get closed in the coop with the other chickens. I do not know where they go but every morning when I get up they are running around the yard soaking wet! They find themselves a place in the sun and shake themselves off and warm up and dry off. The only thing I can figure is that they must have found someplace in the tall grass to hide at night. Should I be worried? Should I make a point of finding them earlier in the day and putting them up in the coop? (I usually go out and close the coop after it gets dark, the open it in the morning and they free range all day). I am just afraid they might get sick from getting so wet all the time.