We have over 20 chickens, so we water in buckets. But a dog bowl can work. What's your weather like, does it freeze there? If so, you don't want him to drink out of a bowl that he has to dunk his wattles in, he'll get frostbite, a very painful condition. Google horizontal nipples for chickens. You install them in a five-gallon bucket, and in the winter set the bucket on an electric warmer. You can get all this stuff at your local feed store. Have you named him yet? Do you plan to get more chickens so he won't be lonely?