13 January, 2000
Hello everyone!
What a day today was! Charles Petit and I went out to Humble Island with
Bill Fraser. Bill and I were visiting the island to photograph specific
penguins that my students in El Paso, TX are going to adopt. There are a
group of penguins that are outfitted with a transmitter. Each bird is
being monitored for its foraging patterns. The transmitter relays a
signal to a receiver and data logger. The birds are basically counted as
absent or present at their colony. If they are absent, that means they
are out feeding.
Bill has generously offered to allow my students in El Paso, TX, access
to his data. With this data they will be able to determine the length of
time individual penguins forage for food. They are very excited about
getting "live data" from Antarctica! I will digitally send them each
bird's picture along with other pertinent data.
It was quite interesting walking through the rookery....yes, it is smelly,
but not too bad! At one point Bill captured a bird with a transmitter so
I could get a picture of it. I must tell you there is a definite art to
catching a penguin. The birds are very smart and can read your movements.
You have to grab them by their feet! After a couple of misses, success!
I had my first up close and personal encounter with a beautiful
extraordianry animal. You want to watch out for the beak and flippers.
The flippers are made of bone and they can inflict a lot of damage. We
found about 8 of the transmitter birds. That will be a good number to
monitor. We visited the telemetry shack. This houses the receiver and data
logger as well as the antennae.
I saw so many interesting behaviors among the animals. The young chicks
are beginning to form creshes. This is like a nursery of sorts where
several chicks begin to huddle up together. I saw some chicks that were
crushed to death by elephant seals as they barrel through the colony. The
elephant seals seem to lay and wallow when they are not out feeding.
Because of their enormous size,they lay anywhere they want. There is real
concern about the amount of damage they can cause a penguin rookery.
Next to the rookery on Humble Island is a nesting site for giant petrels.
What a treat! I was absolutely blown away by these wild birds. These are
the same birds that I spoke of the other day...you know, the ones that
projectile vomit! Today was unbelievable. I was able to witness Donna
Patterson, who studies these magnificent birds, actually handle them. She
has been able to habituate them over the last couple of years and they
allow her to measure them, examine their chicks, and even attach
transmitters to their back! Keep in mind that these are wild birds. I can
only say that it was a very moving experience when she placed a petrel
chick in my hands! She has such a way with these animals. Each one seemed
to respond to her affectionately. She knows them so well that she has
even given names to the more deserving ones. How does "Psycho", "Norman
Bates" and "Hollywood Girl" grab you!?
Today definitely goes on my list for one of the best days ever. I have
lots of pictures to share with you. And if observing the petrels wasn't
enough, we went over to Torgersen Island to do some diet sampling of
penguins. This is done by capturing a penguin (using a net) and checking
for the amount of krill it has eaten by inducing vomiting. This may sound
unpleasant, but it really isn't. The bird is then place in a bag, hung by
a spring scale and weighed. Then it is released. Five birds in all were
sampled. The krill is bagged from each bird, brought back to the lab and
measured.
Until tomorrow....
Mimi
Bill Fraser has just captured this penguin to show me the radio transmitter on its back.
This is the telemetry shack that monitors the feeding patterns of several birds.
Donna Patterson working with a giant petrel.
A petrel tends the nest while it's mate is off feeding.
Donna is removing a transmitter from this bird and will place it on another one.
This krill was taken for a diet sample from a penguin. Yummy!! It seems that penguins are very good indicators of krill populations.
I can't believe I am holding a giant petrel chick!
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