I have lost 2 1 yr old hens in the past 2 weeks. The first, 2 weeks ago was a Barred Rock who has been a great layer and friendly chicken. She came out of the coop when I was giving treats and sat at my feet but I noticed her feathers were fluffed. I picked her up to check her, everything seemed fine. Her vent was clean, her eyes clear, no signs of injury...I sat her back s down and continued putting everyone up for the night. I noticed that she was still sitting by my chair and hadn't moved. I put everyone up and brought "Henny" back to the house. As I walked back, she relaxed in my arm and closed her eyes. By the time I got to the porch, she was gasping for air and seemed to be having a seizure. She died within minutes. 4 days ago, I noticed my Black Maran, "midnight" was not jumping down from her roost. She eventually did and started eating. I checked her and couldn't see anything wrong. The following day, same thing, she wouldn't come down but finally did....that evening, she was huddled in the corner of the coop and was not eating. I brought her to the house, checked her out and couldn't find anything obviously wrong. I put VetRX in her water, put a heat lamp in the corner and fed her yogurt, fresh greens & crumble, She was eating and drinking, poop looked fine, loved the heat lamp at night- her comb was originally a little pale but the color had come back nice. I was planning to put her back with the flock today, but I woke to find her dead. I'm at a loss- will try to find someone who can do a necropsy Monday. The rest of the flock seems fine but so did these 2 - any ideas??