4/2/01 - Bechervaise Island
The chick tagging on Beche started on Friday. I have been in at Mawson
repairing some equipment that got damaged when an electrical fault in
one of the buildings did bad things. I boated out with a team of volunteers
to help with the tagging, but the wind started picking up, so the volunteers
had to take to the boats or risk getting stuck out here for a long time.
Two of us stayed behind, leaving 6 on the island to do tagging. We finished
all the birds we need to do today, last one at a about 10 pm. The weather
forecast for the next few days is not good, so we decided to soldier
on. The tags are tiny electronic transponders that are injected into
the fatty layer in the chicks backs. It's very similar to the tags that
can be put into pets for identification. They are also used on cattle
and sheep. The automatic weighing system can read these tags, so a track
can be kept on individual birds during the one season, and over many
seasons. This gives information such as arrival/departure weights, arrival
time for breading, and foraging trip durations, and in the long run,
is a much less invasive data gathering technique than the alternatives.

The chicks are all a bit bigger than this now, and leave their nests
to huddle together.