Clapp, Roger B., 1963-1964, 1968
Page 47
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Transcription
R.Clapp 1964 Oct. 10 - Taongi Atoll, Marshall Islands Arose at 7:30 and when I reached the flying bridge Taongi was in sight, a possible? Lesser Frigate was seen and Blue-gray Noddies and white- phase Wedgetails were seen. One immature frigate dove repeatedly at the fishline trailing the ship for about a minute. No Black-naped Terns were seen along the reef. From a distance the islands of this atoll did not look promising for birds as the number of birds over the islands seemed much scantier than on the "good" Phoenix- Island bird islands. Sibylla Island Off the atoll to the west in the morning both Phoenix phase and white-phase Red-footed Boobies were seen flying beyond the edge of the reef. At 1445 a feeding flock was seen as we approached the reef to again try the passage into the lagoon. The refoots seen were mostly white-phase but Amerson saw one Brown-phase bird. On the evening on Sibylla we banded redfoots and kept track of ratios of different phases. Of 179 adult birds banded, 171 were white phase, 2 were brown phase and 6 were Phoenix phase. Several instances were noted of Phoenix phase birds mated to white phase birds. (737-80017, 80041, 80053) One fully adult (from general plumage pattern tail color, and soft-part coloration) white phase redfoot (with a golden head wash) possessed an intermediate tan eye color. Face part colors were quite bright, gular pouch black, and feet were medium red in color. Apparently there are several types of immatures or subadults as the case may be. One bird, 737-80075, was generally of the appearance of a white phase bird except that the back, wings, and tail had mottled brown on them. Termed in further discussion as "immature white phase" (better Suba.)