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Transcription
Gould, P. J.
1965
Wedge-tailed Shearwater
1
1/2 day out in S and W direction from Pearl Harbor--August 1
1427. Circled about front of ship and moved with ship. Rapid flapping, then
glide close to water.
1442-1448--Flying in direction of ship on starboard side. A lot more soaring
and less flapping than one before, going higher over water. Flys horizontal, low
over water, then rises in air banking with belly towards ship then back down into
wave trough in "S" shaped motion.
August 2--1 1/2 days out of Pearl Harbor, S and W
We have seen a lot of these today in groups of anywhere from 1-30. Most often seen
in 2's and 3's. Saw one flock where there were 13 or so sitting on water and they
waited until the boat was only 25-50 yds. from them before they flew. Saw another large
flock and noticed a few plunge into the water after gliding close to surface. They
stayed in water a few (1-2) minutes dabbling with head often entirely under water
before flying again.
These shearwaters hold a much more horizontal position over the water than
other shearwaters I have seen. I have yet to see one really shear the water
with a wing. Most of the banking (one wing up, the other down) is done higher
above the water and when they go low they stay horizontal.
We have seen 2 or 3 birds following each other on numerous occasions. They
stay together for several minutes, but almost always break up after this and
circle independently.
We have seen Manx Shearwater and New Zealand Shearwater associating closely with
flocks of Wedge-tails, while other birds such as Sooty and Fairy Terns loosely
associated with Wedge-tails.
August 2--2 1/2 days out Pearl Harbor (S and W) ca. 500 nautical miles by evening
(8:00 p.m.)