Marshall, 1945 22. Palau Ducula oceanica Another call heard less frequently is a loud plain round-toned mellow hoot sometimes a little rough. Several evenly-spaced tones about same pitch & tempo as the harsh calls - all or same pitch, however. Gallicolumba canifrons Koror & Peleliu Identical habitat and distr. as Megapodius - also about same numbers - except with these I never saw more than one at a time. This means that they can be depended on to occur in the habitat, but you can go a long way thru it without seeing any. One reason is that you don't see them on the ground unless you startle one into flight & they flush only when you are within 3 or 4 yds. They fly very swiftly with a clap of wings, an alight a few yards away and walk along gracefully, picking up seeds & fruit. (Head jerks back & forth with steps.) Walk very rapidly - legs twinkle. I recall seeing one scoot along a log very rapid