We purchased 12 baby chicks back in May and one of them passed away when she was only a few weeks old, she had physical deformities. The others have been very healthy and 2 have them have started laying eggs within the past month. This evening my husband went out to closed the chicken coop door and found one of our leghorns, the one who was laying eggs, laying in the corner of the run near the coop door breathing heavy. He brought me out to see her and he picked her up, she was also drooling and breathing with her mouth open. We took her away from the rest of the flock, I checked all of them and they all looked fine. We put her in our pet carrier with a towel so she had something comfortable to lay on and within the hour she died. This morning she was perfectly fine. Her comb was also a bit floppy. I also found one of her eggs on the floor of the coop under the perches where she has never laid an egg before, she always lays them in the same nest box. She has been a daily egg layer since she start laying about a month or so ago, never missed a day. Also, we gave them a pumpkin today for the firs time. Not sure if that could have anything to do with it, but they loved that pumpkin. So my question is does anyone have any idea what could have happened to her and if it is something we can try to prevent from happening to the rest of our flock???