I posted yesterday about 5 I lost. I have Buff Ops, RReds, White Leghorns, Barred Rocks, and Americaunas. I seem to be loosing the white ones the most. Yesterday 3 more died and one was on its way. I though maybe since I free ranged them for the last two? weeks perhaps they ate too much long grass or fresh cut hay. They are all almost 4 months old and were in fine spunky health until about 4 days ago. They have no access to any chemicals, our coop is away on it's own. Surronded by clover, grass weeds ect.. We had a seperate flock of 50 in the same location with no problems.. Two hens remained from that flock and one was lost this week to what I have no idea. We baby our chickens they have a secure coop, big enough a family could live in. Cement floor/dirt floor outside. Fresh cold water daily, starter grower feed (same we have been using) temps 70's to 87' at the highest but the coop inside stays in the 70-75's. Stools look fine, some loose but nothing i havnt seen in the last 4 months. They look fine, eyes good, crop good, no visible bugs. But I have been coming in daily to find some dead or close. I looked up Cocci and mereks and see no symptoms that would make me think this was it. I did find some eggs that the oldest hen must have laid in a high nesting box Im too short to notice and they had been cracked open and eaten and what was left had maggots/flys/and black gook not a pretty picture. I cleaned that out yesterday could that have been it??? Also, we have thistles outside the coop the chickens loved to roam under and I see they do eat the leaves. Are there toxic weeds to chickens? My chickens are just dropping dead and I cannot figure out why. Has anyone had anything similar happen? I am no longer letting them free range until I can get a handle on what the heck is going on. Diet is starter and water for now. The rotten eggs/maggots and thistles/letting them free range at four months before grass/clover was cut and access to fresh cut hay are the only things different from our last flock. Any ideas? Thank you in advance for any advice.