Buff-faced Pygmy Parrots (only 3.5 inches long and weighing less than half an ounce) are unusual among birds for eating mainly lichen and fungus : r/Awwducational
Pygmy Parrot - Smallest parrot in the world. | Parrot, Small pets, Parrot perch
Buff-faced Pygmy-Parrot - eBird
Cayman Turtle Centre: Island Wildlife Encounter - The Buff-faced Parrot reaches a height of a little over 3 inches. That makes it even smaller than an adult human hand! #WorldParrotDay2020 | Facebook