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Transcription
D+H R
May 30 - Returned to SE Island of Pearl & Hermes Reef at
about 1600. First thing we did was to unload the raft and
pitch the camp since we are staying for 2 nights. Afterwards
a continuation of our previous survey was made. 2 new
techniques were introduced to me by Gadel: #1 Egg flotation:
one places egg in tin of H2O and note whether egg not the
egg floats and how it floats. 10 Sooty tern hatchlings at ~28 days
1-5 days: egg on bottom, 5-15 mid, 15-25 egg rides high, if the egg
tilts. The yolk is used up. This method of egg dating can enable one
to gain an insight into sub-populations, when birds landed ----
#2 To take an estimate of a nest population: measure an area, then
measure 30-50 distances between nests and figure out density
and population.
Sooty Returns (of interest: 903-08519), 2 RFB, 2 GF,
/ WC Nolly, found 8 albatross bands. One of the GFs had an
orange streamer (737-37124). Of interest, I found 2 frigate
nests with least Sooty Terns inside - food. Flushed 1 Laysan
Seal from Seacurine.
At night we bled birds and branded those bled. We accomplished
100 Laysan Albatross, 50 Great Frigate, 30+ Wedgetail. Got to
bed at about 3am.
May 31 - Inez and Thompson went back to the 2887 to spin the
blood samples. Me and Stike and Bob and Dee jumped in the
raft to survey the other islands. Due our eagerness to depart or
whatever, no one brought food - so we didn't eat until
1700 that afternoon. Talk about hunger, I was ready to
eat an Albatross raw or not! On each island or bar or patch
of coral, a survey was made along with taking a few returns.
Map - not to scale
SE Island
1- Bud 2- bar 3- Bar 4- Bar
Used 5 tally
number indicates the 1st, 2nd