Quote:
I just put the chicks in with the water already set up. They'd been started on a traditional waterer by the breeder so I put a small dish of rocks and water in also to be sure nobody would go thirsty. And then I watched. The plastic housing for the nipples is red and they were drawn to the red thing with the shiny metal in the center. Curious chicks that they are, they pecked it. Drip shows, drink it. Peck? Drink. That's all there was to it. After I'd seen everyone use it, I took out the dish of rocks. The entire process took 30 minutes.
ETA: And yes, older chickens can learn. Some are more accepting than others but my experience was that once they'd discovered the nipples, they were no longer interested in the dish.