If you are thinking about a bird as a pet you should know that most large birds are given up within 5 years of adoption. Select the right bird for you to ensure that you'll be able to provide for him throughout his life. Birds are most often acquired from pet stores. Be sure to go to a reputable store that specializes in birds. These stores offer weaned babies that are easier for new owners to care for than unweaned or untamed birds.
Birds are also available from bird breeders who specialize in one or two species.
Bird breeders come in many varieties from pet owners presented with a nest of eggs all the way to ranchers who own hundreds of birds. Try to find a breeder that has both. Birds are also available second hand from classified ads and from rescue organizations. Be sure your source is honest about why the bird is available. If the bird owner or rescue association is asking for a donation or fee, ask them to justify this.