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Transcription
R. S. Crossin
1965
Laysan
Red-footed Booby
18-21 July Estimated population = 1300 birds. This species builds a
frail nest of sticks, usually on Scaevola bushes, but occasionally
other shrubby type plants are used. All nest observed contained
young from large still down covered to nearly fully-feathered
individuals.
7 August No change from July.
Frigatebird
18-21 July Nesting season well along all nests with young ranging from
a few still covered with white down to adult-size birds. All
nests observed were of sticks forming a shallow platform in
Scaevola frutescens bushes. Apparently only one young nest.
Estimated population = 5,000 birds. The adult o' often seen on
the nest shading the young, both morning hours and P.M. so shifts
probably vary with each pair.
7 August No change in numbers, young larger as expected.
11 August Possibly numbers are up this month - this probably due to more
immatures in the air.
Laysan Teal
18-21 July On the night of the 17th just after landing we started banding
Sooty Terns on the west side of the island. I captured one
individual of this species which had been wandering about in the
Scaevola - grass tern colony. This was some distance from the
lake. On another o casion one individual was flushed from the
dense tangle formed by the con ? plant which surrounds the lake.
Estimated population = < 200 birds.
7 August 6 adults, 2 ducklings about 3/4 grown seen so far.
9 August After banding until dawn, we came back to Camp and observed an
adult o' feeding in the surf on the west shore. The bird would
run down the beach as the tide went out and grab up crustaceans
or some small animal life, then the tide would swoop in and carry
the bird up the beach - then the feeding would be resumed. Two
birds (adults) seen along the ease shore of the lagoon. One flew w
west over the heavily vegetated belt surrounding the lagoon and
was chased for about 100 yds by a common nobby tern.
In the afternoon the entire crew of 5 went into the area on the
east shore of the lagoon banding Red-footed Boobies. With all the
tramping around, no teals were flushed. Two were seen on the
shore of the lagoon in late afternoon and right at dusk Ken saw
two which may or may not have been different birds. Jeff caught
one banded bird way over on the south end of island by the rail-
road.track (band No. 615-30603). This may be the clue to the
problem - they may be scattered at random - over a good portion