When I received my five chicks from My Pet Chicken they peeped loudly, and were quite active. They ate and drank well, and I had no worries. Then a few days later I noticed the Blue Cochin was sleepy and didn't seem to be eating, nor was she as active as the other chicks.
I put a bit of PolyViSol infant vitamins in the dropper and filled the rest with water. Twice that evening I put her on my lap, dribbled the water onto the side of her beak and she drank quite a bit altogether. After the second time of the water, I noticed her eating again.
The next day she was quite back to normal. She had watery poops, but after eating, that became normal, also.
I really think if I hadn't given her the water, she would have eventually died. It's as if she was tired and sleepy, and couldn't get the proper food/hydration she needed.
Carla