Marshall, 1945 Palau Colluricincla tenelrosa Lack of fidelity to definite pattern of conduct is jay-like, suggesting emphasis on intelligent behavior at the expense of instinctive behavior. Apparently at a different stage of breeding cycle Peleliu & N. Palau Aplonis opaca Common, all islands, wherever tree-growth occurs. Evenly distr. throughout the jungles & forests in flocks up to 50 (rare) or more, generally in small groups. Juvs. often in flocks by themselves. Like to perch in bare limbs of dead trees. Calls slightly different from Marianas. Singing rarely heard. On Peleliu gather around cliffs & also found around camps. Not as abundant as at Guam - about same as Saipan & Tinian. Take long flights - over the lagoons & from ridge to ridge (Koror) (2 1/2 x 3 1/2).