The budgerigar, also known as the budgie or parakeet, is a small bird species native to Australia. On average, they measure around 7 inches in length and weigh between 30-40 grams. With a wingspan of approximately 12 in, they display a light green body color on their abdomen and rumps. Their mantles, which include the back and wing coverts, feature pitch-black markings outlined in clear yellow undulations. Adult budgerigars have a yellow forehead and face.
2. Young budgerigars have distinct characteristics before reaching their adult plumage. They possess blackish stripes that extend down to the cere, which gradually disappear by the age of 3-4 months. These young birds also have small, iridescent blue-violet cheek patches and three black spots on each side of their throats, known as throat patches. The outermost throat spots are located at the base of the cheek patches. Their tails are cobalt in color, with central yellow flashes visible on the outer tail feathers. The wings exhibit greenish-black flight feathers and black coverts with yellow fringes, which become noticeable during flight or when the wings are extended. Budgerigars have olive grey bills and blueish-grey legs, with zygodactyl toes.
3. In their natural habitat in Australia, wild budgerigars are generally smaller in size compared to those kept in captivity. However, captive breeding has resulted in a wide range of colors and shades, including blue, grey, grey-green, pieds, violet, white, and yellow-blue. Budgerigars commonly found in pet stores are often blue, green, or yellow. Similar to other parrot species, the plumage of budgerigars fluoresces under ultraviolet light, which may play a role in courtship and mate selection.
4. Budgerigars have unique beak structures. The upper half of their beaks is taller than the bottom half, concealing the bottom when closed. The beak appears to point downward and lies flat against the face due to the surrounding thick and fluffy feathers. The upper half acts as a long, smooth cover, while the bottom half resembles a half-sized cup-piece. These specialized beaks enable budgerigars to consume a varied diet consisting of plants, fruits, and vegetables.

