We have had to cull all 5 of our pullets for "bubble eyes". We have been medicating 2 of them for a week with no progress, The other 3's symptoms have hit hard and fast. I guess it is due to the extreme temps. These have been free ranging game chickens with plenty of shaded areas to range. Our rooster seems to be fine. No signs or symptoms. Is it possible that he is O.K.? He is the only chicken we have left. Should I cull him and start over, to make sure we are disease free? Is there a breed of game chickens that are more hardy than the others? This is our first run at chickens since I was a kid 35 - 40 years a go. I do not remember having to deal with this then.................Any help or info would be appreciated. Thanks!