We have had cooler weathe than normal, but this last weekend it was really warm 87 plus and extremely humid. Sunday morning I noticed one of my hens was trying to sleep out in the run during the day. Today, I came home from work and it looked like she was trying to sleep again. When I walked up to her she looking liked she had drool down the front of chest and head head was bobbling around. I picked her up and she seems thin and had clear, watery stuff coming out her nose. I took her out of the pen and set her on the ground. She couldn't walk and had to stick a wing out as if she was trying to steady herself. She also sounds gruggly when she was breathing. After pulling her out I walked the pen and I had another hen who has a droopy tail and a rooster who just doesn't seem like he feels well. I had searched and searched. Can someone point me in the right direction? I wormed my chickens back in March.