Today, as I was watching my chickens out in their run, I noticed another bird on the other side of their fence. It kinda moved like a chicken and just figured one of mine must have somehow gotten out. As it walked around I could see it wasn't a chicken and my "girls" were trying to scare it away (to no avail). I think it was some kind of grouse. It was pretty fun to watch, because it stood more upright like a chicken, but ran into the bushes like a guinea hen. My chickens didn't bother it much, but I couldn't even get outside to get a picture of it. It would run for the bushes every time it heard my door squeak as it opened. Should I be worried about my chickens picking up any diseases from this wild bird? The closest they get is just through a chain link fence.
I agree with LG, dowgirl. This is one worry you can cross off your list... they are going to get exposure to wild birds regardless. Think of this as a bonus... if it's a guinea hen, maybe it's eating ticks for you.
