Albino parakeets are those that exhibit a mutation in the color-producing portion of their genome. The gene that causes the mutation is called the ino gene. However, because there are two different basic colorations for parakeetsâ€”blue and greenâ€”there are two different types of albinos.
Blue parakeets have a white base color with a layer of blue feathers on top. This feather arrangement makes blue parakeets primarily clad in blue and white. Green parakeets have a yellow base color with a similar layer of blue feathers. This combination of yellow and blue colors make the birds appear primarily green. The ino gene in both types of albino parakeets halts the production of blue pigments, making the blue parakeets appear white, and the green parakeets appear yellow. The mutation also causes the birds' eyes to appear red or pink, with a white circle around the iris. Their beaks and skin are light pink to orange in color.
Often, the mutation is referred to differently, depending on the original color of the bird. Green parakeets with the ino gene are called lutinos. By contrast, blue parakeets with the gene – who look all white – are called albinos.