Parakeet by iamrawat on Flickr.

An excellent shot of some Parakeets. Budgies are often kept as pets, and are native to Australia, predominately in the drier parts of the outback.

Via Flickr:
Parakeets, Budgeriers, Keets, or Budgies, breed best in groups, but are usually fine breeding in pairs. Hearing other parakeets encourages a pair to breed, which is why breeding in groups is more successful. However, many breeders choose to breed in pairs because that way they know which parents produced any given offspring.