Stickney (1943:3, 4) discusses the migrations of the Pacific Golden Plover through Oceania, using as a basis for her remarks the data from the extensive collections made by the Whitney South Sea Expedition. She states that the northward migration begins in March from the southern islands (New Zealand and southern Australia). At Guam in 1945, the writer observed flocks of plover beginning on February 11. Birds were seen in small groups in March and April. In the latter month most of the birds seen were in nuptial plumage. For the year 1945, the latest spring record at Guam was April 28. In the same year, Gleise (1945:220) observed his last spring record at Tinian "between April 26 and 27." In 1946, Morrison obtained plover in nuptial plumage at Bikini on May 3. In an effort to obtain dates when shore birds appeared at Guam, field parties of NAMRU2 made observations at several beaches in late spring, summer, and early fall, as is shown in table 8. Pacific Golden Plovers in post-nuptial molt were first observed and collected on July 8. Following this date, small flocks and later large flocks were more numerous; by September 29, plover were abundant. Similar findings were obtained at Ulithi (see table 9) and in the Palau Islands (see table 10) in August and September. The birds collected by the NAMRU2 party at Guam, Ulithi, Peleliu, and Garakayo in July, August, September, and early October were in postnuptial molt. Birds taken at Rota on October 20 and 26 were in winter plumage. Downs (1946:93) observed plover in small flocks at Tinian in 1945, beginning after September 5. Borror (1947:417) saw two birds at Agrihan on August 10, 1945. The flocks of plover seen by the NAMRU2 party varied in size from three to 30 birds, the average being less than ten. Coultas (field notes) noted "large flocks" at the Palaus from October to December, 1931. Although plover was often found on the same beach as other birds, the NAMRU2 observers rarely saw plover together with other shore birds. However, on air strips _Pluvialis_ occasionally occurred with small numbers of _Arenaria_, _Heteroscelus_ spp., and _Numenius phaeopus_. _Pluvialis_ and _N. phaeopus_ were the only shore birds found to use open grassy flats and other inland areas at Guam and Peleliu in 1945. Stickney (1943) records _Pluvialis_ in late spring and summer from Polynesia, indicating these to be birds remaining in the winter range during the breeding season. The NAMRU2 party observed no Pacific Golden Plovers at Guam which might be regarded as non-migrants, but other species of shore birds were found which might be considered as such. The lingering of individuals in the winter range is not unusual among migratory birds, and as Stickney points out, most of the non-migrants retain their winter dress or assume an incomplete breeding plumage. =Charadrius hiaticula semipalmatus= Bonaparte Semipalmated Plover