Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
MARSHALL, 1945
PALAU
Pteropus
Peleliu, 1 & 2 November Fruit bats here begin to come out to forage in middle of afternoon, even on many sunny days. By late afternoon they are everywhere, flying around at low altitude over the trees, lighting in fruit trees and eating fruit. Often flushed at close range from low trees, fly off with large round fruit in mouth. Much more abundant here than Marianas. In feeding trees, very noisy, squabbling.
Koror, month of November Abundant. Although feed anywhere that fruit trees are available - even around camps and houses, greatly favor the trees out in themangrove swamps. Especially the swamp at the north termination of the main Koror ridge of mountains. Many feeding by sunset amid perfect din of chattering. However, not all are out at this time, because just after sunset, they begin to fly in along this ridge, one by one in a steady stream. They fly along the top or near the top of the ridge and as they come to the termination of it, they half close the wings and make a dive directly down to the feeding trees in the swamp below. They dive at about a 45 degree angle, with great speed so that the wind makes a shrieking whistling sound thru their wings. They adroitly check their speed at the bottom of the dive at tree top level and make a circle or halfcircle back to a tree where they land by pitching forward, over the horizontal branch, grappling onto it with their feet on the way over the top. Most bats flush when approached within 30 or 40 yards, but many are very tame, and can be shot with the 22 aux. I am convinced that these latter are the young bats. Therefore to get adults, one should shoot them in flight. (When shot hanging, they generally remain hanging even though dead.)
I have many times heard and seen bats alight in low banana trees - halfway out on the larger horizontal leaves. They alight with a loud crash against the leaf, hang for a while. But I have not seen them feed on these trees. I have seen them light only 4 or 5 ft from the ground. They also like to alight the same way in palm fronds, from which they hang, swinging front and back, but I don't see them feed.
In the feeding trees at the edges of the swamps, bats are constantly alighting at the same point where one or two others are feeding. This always results in loud cries and the exit of one or all the bats.