Domesticated birds raised for meat or eggs are poultry. If you're going to keep poultry in your back yard, you'll need to build a chicken coop.
When you talk about eating chicken or turkey, you can refer to that type of meat as poultry: "I don't eat red meat — just a little fish and poultry." Other birds that fall into the category of poultry are domesticated guinea hens, ducks, and geese. If they're wild, on the other hand, they're called game. Before poultry came to mean "domestic fowl" in the 14th century, it meant "place where fowl is sold."