Hello, On Saturday afternoon my wife took our rooster to the vet for wheezing symptoms and a very weak morning crow sound (symptoms for 2 days). The vet put him down since he was obviously in distress. Saturday night I checked the other birds and one of the hens was making a gurgling sound while inhaling and exhaling. I put her down that night. Both chickens appeared otherwise healthy in terms of weight, stool and behavior. We're now left with 2 hens that appear, today, to be free of the symptoms. One of the hens had been sitting on a clutch of eggs and I stopped that, not wanting to introduce chicks into the problem. The birds are free range and share the pasture and shelter with our goats. The reading I've done leads me to believe that it could be viral, bacterial or possibly worms. Without knowing for sure, it's difficult to know that the disease has run it's course. My plan is to clean up and sterilize their roosting area and not bring any additional birds in for a few months. Sound reasonable? Am I missing anything?