The large green pigeon can usually be found in small flocks, high in the canopy of tall trees (2). It is a fig-eating specialist, favouring fig tree species that produce larger fruits, over ten centimetres long. The animated feeding activity of the flock at a fruiting tree causes large numbers of figs to plummet to the ground; these fallen fruits either being dislodged accidently, or found to be unripe and, therefore, discarded (4). Like other green pigeon species, the large green pigeon is believed to spend most of its life in trees, visiting the ground for short periods only to swallow grit, which helps its gizzard to grind up food that it has ingested (3).
Little is known about this species’ reproductive biology. Sightings of pigeons copulating, collecting nest material and apparently perched on nests, which appear to be little more than a platform of twigs, have been recorded in January, April, July, August and November, while sightings of birds with eggs have been made in January and March. The large green pigeon does not appear to be migratory, although on one occasion a bird was witnessed making a long-distance night-time movement, and flocks have been known to relocate according to fig tree fruiting cycles (4).