I'm hoping for some insight today since I looked out into the coop and found my chicken dead. She just turned 3 this past week. Barred Rock hen, no sign of trauma. There was an egg of normal size, color, smell in the laying box. No changes to diet had been made. She was one of 2 chickens I had, but as of last November the Rhode Isle Red died very similarly. (they were both the same age.) I was actually present for that -- she just jumped down off the perch, had a convulsion, and died within seconds. There were no predators. It was just a sudden thing. The Barred hen has been perfectly healthy, so I figured it was an isolated event. However, today she was just laying there dead. I saw her this morning being her usual self -- no signs of fatigue, good eyes, scratching, egg in the box, she was jumping up and down off her perches easily. I've been feeding them Purina's Layena and giving some oyster shell with the crumbles. Aside from that I gave her a partial head of cabbage yesterday, egg shells as I use them, and leftover bird seed that my dove doesn't eat. Nothing new. I was arranging to give the unused Layena crumbles to another person, but thought I should consult the forum for any insights into why this "sudden death syndrome" before giving away the food. Maybe there is something I missed? Some factor or variable that someone can point to? Would it be okay to give away the food or should I dispose of it some other way? Any wisdom on this is greatly appreciated. Thanks.