As with all other animals, birds need a proper balance of carbohydrates, proteins, fats, vitamins, minerals and water. Different species of birds often require different foods.
There is a lot of information available about diets for pet birds and as time goes on, our knowledge continues to improve. This is due to heightened awareness of the importance of nutrition plus increased research involving pets and wild birds.
Hand-rearing baby birds is often performed to produce a cuddly tame young bird. Unfortunately commonly used rearing techniques and the isolation experienced by single birds, may account for the many psychological problems that occur in these birds.