A small, largely green pigeon with bold, scattered pale markings on its wings. Adults show largely pale bills while immatures have dark bills. Small groups found in varied habitats with trees, from forests to open woodlands. In most of its range it is the only Treron green-pigeon, but where it overlaps with Pink-necked Green-Pigeon, note the extensive pale markings on the wing of Flores Green-Pigeon and the absence of a pink-orange breast patch. Song is a series of soft whistles, “woo-wo-OW,” rising at end. Also gives harsher guttural notes.