The grey-green fruit dove (Ptilinopus purpuratus ) is a species of bird in the family Columbidae. It is endemic to the Society Islands in French Polynesia. Its natural habitat is subtropical or tropical moist lowland forests.
It is about 23 centimeters long and weighs about 95 grams. It is small and plump and has a short tail. The body is mostly green and the top of the head is light purple with gray. The neck and chest are gray and the belly is dull olive. There is a light gray band around the tail. The beak is yellowish or greenish yellow. The feet are purple. Young birds are darker in color than adults, and the top of their heads is not light purple. The rim of the big wing cover and the third wing feather is yellow.
It lays one white egg at a time.
In 1907, the grey-green fruit dove was reportedly very abundant on the two islands. However the population has declined since then. There is an ongoing slow population decline due to habitat destruction, the introduction of non-native plants, predation by invasive species such as the swamp harrier and feral cats, and competition by invasive red-vented bulbul and common myna.
