MARSHALL, 1945 Pteropus Koror, November These bats see do a lot aflying, day and night, apparently just for the fun of it. In evening, when most are diving over the 300 ft ridge to the swamps, others are flying generally in straight path for long distances and at great altitude. In daytime, several can generally be seen flying along or high above the ridge On 19 November, a sunny day, at noon I ate lunch in a tree at top of themain ridge where I couldwatch for hawks. Bats were continually speeding past, very closeto the top of the ridge, often in couples. Almost no wing-beats, just sailing, andat considerable speed. They would make a circuit so that the same bat would sail by evvey few minutes. Are very adept at this type of soaring. Silent in flight. It was not until 2 December that I found any roosting in daytime. There was a colony of about 50 in a huge small-leaved tree near the top of the rige in a very remote and wild forest suth on the mountain near the lake. There was some noiseand chattering, but most were hanging asleep. As it rained, some shook and fluttered their wings - either shaking the water off or taking a bath. (Same way thebats on Tinian shake their wings in thesunlight.) Peleliu, 4, 5, 6 December Southeast part of island in are; ofradio transmitter. Same typeof evening flights noted where at dusk the bats radiate out from some point to the suth - (deep woods - where I looked for but found no roost) south, not an or ganized flight but singlebats coming at high altitude every minute or so, andin same direction. By dusk they are flying low and alighting in fruit trees. 5 Dec shot a female with a suckling young. These two were colored alike - a beautiful deep chocolate mantle, with a few silver hairs. Another female taken same place, same time, had a taffy-colored mantle. (MVZ specimens). Male adults can be distinguished in flight by the pendant penus, and I shot two, but they fell out in the swamps. In thevial of ectoparasites from Peleliu, thered mites are from the suckling bat only. The large tick-like 6-legged parasites are only from the adult bats. The little buff colored insects are from the backs of these "ticks", probably their young. Noted also a few daytime on Babelthuap, admany, Arakabesan