Ducula whartoni that is the binomial name of Christmas Imperial Pigeon,its an endemic to Christmas Island in the eastern Indian Ocean. This species has been down listed to Near Threatened because although it has a very restricted range and its population may be moderately small, the population is estimated to be stable despite the presence of several invasive species and there is not thought to be any plausible threat which is likely to cause rapid future declines.
Large, dark grey pigeon. Sexes similar. Purplish, greenish or reddish-brown iridescent sheen on upperparts and breast, depending on viewing angle. Yellow or orange iris. Red-brown undertail-coverts. Juvenile more dull, more brown on underside, paler on lores, chin and forehead, with brown iris. Legs and feet purplish-red in adults and grey-brown in juveniles black bill