_Remarks._--The White-collared Kingfisher at Palau is a showy and conspicuous bird. It cannot be classed as a forest bird but seems to prefer openings and marginal woodlands. Its range does not overlap that of the secretive and inconspicuous _H. cinnamomina pelewensis_, which prefers the denser forests. In 1945, the NAMRU2 party found _H. c. teraokai_ to be numerous in the cleared battle areas at Peleliu and Angaur. A favorite perch of this bird was the telephone lines, from which a number of our specimens were shot. Usually the bird was observed singly; occasionally two birds were found together. A pair was seen in copulation on August 29. The call of this bird, a loud and harsh rattle, is noticeably different from the low rasping note of _H. c. pelewensis_. Coultas found _H. c. teraokai_ to be numerous in 1931. He comments (field notes) that the bird frequents salt water areas, especially the mangrove swamps. He noted the bird fishing at the outer reef. =Halcyon chloris orii= Takatsukasa and Yamashina White-collared Kingfisher _Halcyon chloris orii_ Takatsukasa and Yamashina, Dobutsu. Zasshi, 43, 1931, p. 484. (Type locality, Rota.) _Halcyon albicillus_ Sharpe (part), Cat. Birds British Mus., 17, 1892, p. 249 (Marianne = Rota). _Halcyon albicilla_ Oustalet (part), Nouv. Arch. Mus. Hist. Nat. Paris, (3), 7, 1895, p. 169 (Rota); Hartert (part), Novit. Zool., 5, 1898, p. 53 (Rota). _Sauropatis albicillus_ Kuroda (part), in Momiyama, Birds Micronesia, 1922, p. 58 (Rota). _Halcyon chloris orii_] Hand-list Japanese Birds, rev., 1932, p. 180 (Rota); Hand-list Japanese Birds, 3d ed., 1942, p. 200 (Rota, Saipan as straggler); Mayr, Birds Southwest Pacific, 1945, p. 293 (Rota); Peters, Check-list Birds World, 5, 1945, p. 210 (Rota); Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 64 (Rota). _Geographic range._--Micronesia: Mariana Islands--Rota. _Characters._--Adult: Resembles _H. c. teraokai_, but loral spot larger and more buffy; occiput lightly streaked with white and white line above eye; top of head and back more oily green and less blue, darker in female. Immature: Resembles adult, but underparts and loral spot buffy with dusky edges; feathers of forehead tipped with buff; remainder of upper parts slightly darker. _Measurements._--Measurements are listed in table 33. _Weights._--The author (1948:64) lists the weights of two adult females as 84 and 85. _Specimens examined._--Total number, 11 (4 males, 6 females, 1 unsexed), from Mariana Islands, USNM--Rota (Oct. 18, 19, 22, 26, Nov. 2). _Molt._--The 11 specimens taken by the NAMRU2 party at Rota in October and November are in molt.