The Grey-headed Lovebird (A. canus) is native to Madagascar, but has been introduced to the Comoro Islands, Réunion, Rodrigues, and the Seychelles. These birds are generally encountered in flocks of 5 to 30 or more individuals, in flight or feeding (mainly on grass seeds) on the ground. They are generally common in Madagascar, at least in more open country in coastal regions, and in the Comoros, but are present in only small numbers in Réunion and Rodrigues and have a limited distribution in the Seychelles. There are many Grey-headed Lovebirds in captivity as well.
(Collar 1997 and references therein; Juniper and Parr 1998 and references therein)