* Psittacofulvins are yellow, orange, and red pigments that are found in the feathers of many parrots. They are produced by the parrot's body from carotenoids, which are pigments that are found in plants.
* Turacins are red, purple, and blue pigments that are found in the feathers of some parrots. They are produced by the parrot's body from copper ions.
* Melanins are black, brown, and gray pigments that are found in the feathers of all parrots. They are produced by the parrot's body from tyrosine, which is an amino acid.
The combination of these pigments gives parrots their wide variety of colors. Some parrots have bright, vibrant colors, while others have more subdued colors. The colors of a parrot's feathers can vary depending on its species, age, sex, and diet.
In addition to pigments, the structure of a parrot's feathers also contributes to its color. The feathers are made up of tiny, barb-like structures that are called barbules. The barbules are arranged in a way that reflects light in a certain way, which gives the feathers their iridescent appearance.
The colors of parrots are important for a variety of reasons. They help parrots to camouflage themselves from predators, to attract mates, and to communicate with each other.