5 like parrots. These birds have very thick, short, strong tarsi, and can maneuver on little twigs very well - can turn around like a parrot. An excellent example of concealing coloration, also these birds stick to the light green trees - maybe just coincidence because of certain crops of wild figs and other fruits they eat. Once I shot at a spot where I had seen one bird, and two fell. That shows how hard they are to see. When males are hooting they are very difficult to find, as they remain quite motionless. Call starting with very impelling "insistant" notes: cooo, coooo, coooo, coooooocococoo cooo cooo cooo cooo. Only time seen much in flight was Saipan 24 Dec 44 when I saw a flock of 6 going straight over a canyon. Usually are at lower heights within level of jungle canopy. In certain places on all three islands where the birds are very abundant, they often come into smaller trees, and can sometimes be approached very closely. Not a flocking bird. Calls all during day. Streptopelia- Columba livia Noted once on Tinian in patch of jungle,perched. Flocks of obviously carrier or domestic birds seen Apr on Saipan. Streptopelia bitorquata Saipan Tinian Guam Abundant on all three islands. Feed singly or in pairs on bare ground on trails, dirt roads, or clearings. In flight they like to fly very low over bare grounds or uniform grassy fields. In any one place, such as my barracks,which is at top of a slight knoll, they are always going on the same path. They stay close to the ground, but make great zigzags or aerial leaps over telephone wires and around tents. It has always seem to me that there are more birds coming down the hill, than back up it. So there must be an inexhaustible supply back of my house. March April May were doing much calling at all times of day. Sound pretty much like Chinese Spotted Dove, S. chinensis: rolling Coooo, cu- coooo. Gallicolumba zanonura Saipan, Tinian, Guam Common in timber and wherever there are large trees. Not as many individuals as Ptilinopus. I have never seen these birds on the ground. I have collected them feeding in trees - often very high in wild figs. #2943 was eating papriya in a papaiya tree 15 ft off the ground. Generally paired. Most often seen on long flights high over valleys and ridges. Flight unique among birds - very laborious, deep strokes, wings look like they are beating backwards. The bird actually seems as if fighting against a strong head wind. These long wandering flights always by solitary birds. Very quiet and well concealed (especially females) when in timber. Mating call a low groan moan - 000000h (as in moon). A single note, uttered at intervals of 10-20 sec. Another remarkable call heard on Guam, when the birds were mating. (1st part of June) Very loud and long crrrrreeeeek sounds like gigantic cicada or snarl or beginning of toad's call.