I got two new chickens about 3 weeks ago and when we got them home I noticed their feet were "dry/flakey." After reading a post in another forum, I think they might be mites. Is there any other way to get rid of them without using vasaline? One of the girls has feathered feet and it is hard to get vasaline on her feet. I had a friend who has indoor birds and she suggested getting the shot that gets rid of mites. Has anyone ever heard of this? Next, how quick will it spread to the others (I've noticed one of the others I've had for awhile has funny looking earlobes. They are light colored and look dry. Could this be mites from the others feet?) and how often should I change their bedding?