Approximately 3 month old cochin bantam chickens bought as day old chicks at TSC 4 total have all died within hours of each other There were no signs of lethargy or illness. 2 of my other birds are now appearing "slow" and don't seem to move as fast as normal. There are no signs of trauma, bites, mites, or bleeding. There was a white clear liquid coming out of their mouths when they died. One died in my husband's hands, and simply ruffled her feathers, layed down, and died. The only thing out of the ordinary that occurred was that we moved the cage 2 feet over so that the chickens would have grass to scratch and so my grass could grow back in the other spot. They were eating well. I use Manna brand chick food with a small amount of oyster grit in the food. Most of the poop in the coop looked normal. One of the chickens that passed had a little poop on its back end that was a bit slimy. No treatment at this time. Coop was moved back to previous location, just in case there was something that caused it in the new location. I would like to treat the issue myself, but I'm not sure how. I need help! The current housing is the innovation big green coop from TSC that holds 15 chickens. I only have 11 in the coop (2 duccles, 4 silkies, and 5 cochins-4 of which have died) I am in Louisiana. It is only in the upper 80s these days. They are in a covered home. Mosquitos have been out, but none in the cage. I've noticed a few gnats and flies, but not many.