Last night when putting all chix to bed one of my Marans threw up at least that's what it looked like. It was the first night all the chix were in the big coop together. So I don't know if it was from excitement or what. She was fine this morning, vent is clear, taking h2o, food staying down, walking, squawking as usual. Does anyone have any ideas? Have checked fecal and found no worms also have dusted for mites last weekend.