Yes, your bird needs food, water, shelter, and sleep. But that's not enough to make this feathered family member happy. As a social animal, he also requires you to interact with him via play and training. Here's a quick list of some ideas to consider, with more great info on the Drs. Smith and Foster site.
Watch your bird play with his toys - ropes, chew sticks, and similar items may be put to new use.
Talk to your bird - there are documented cases of African Grey parrots, who can have the intelligence of a 3- or 4-year-old child, going beyond "parroting" and actually recognizing the words you speak.
Play hide and seek with your bird. They can have great memories, so "hide" something in their presence then let them go "find" it a couple minutes later.
Source: Doctors Foster & Smith
