To my surprise, at the end of the Tawny
owl project this year I was given the opportunity to be part of the
team on the African White-backed Vulture ringing programme. I had a
few weeks to get myself ready for my African adventure along with
Andy Hinton, Gary Benton, Jane Robertson, and Adam Rose.
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2 African white-backed
vultures and a Lappet faced vulture |
On our arrival in Kimberley we were met
by Dr Mark Anderson, who has been running the vulture ringing
programme for 14 years. It is a collaborative project with the Department of Tourism,
Environment & Conservation, the McGregor Museum, the Birds of Prey
Working Group in South Africa, and The Hawk Conservancy Trust.
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Gary and Angus checking
a martial eagle nest |
Each year African White-backed Vulture
nests are visited and any chicks are weighed, their wing lengths
measured, they are ringed and fitted with wing tags. The rings and
tags allow the vultures to be identified and their movements and
behaviours monitored. This year blood samples were taken for
analysis for pesticides that could affect the vultures’ reproductive
success. The purpose of the programme is to monitor the population,
so if the population crashes as it did with the Oriental
White-backed Vulture, the cause and a solution can be found by
conservation organisations.
On our first two days on the survey, we
were split into teams that each had a different area to look for
the vulture nests. This meant a lot of off road driving, often standing
in the back of a pick up truck. It wasn’t like looking for
a needle in a haystack though as we were using GPS (Global Positioning
Systems) to find most of the nests. Once a nest had been found,
a ladder was propped against the tree and someone climbed the tree.
This year Gary climbed most of the trees, after thorough instruction
from Angus Antony the resident expert. Once through the thorny
canopy of the Camelthorn Tree (Acacia erobola) a chick was
waiting for its capture and gentle descent in a bag.
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A tagged chick |
Once safely down, the chick (often
near fledging age so very large) was weighed and had its wings
measured. Then two patagial wing tags were fitted and a metal ring
put on its leg, both with unique numbers on. A small amount of blood
was taken for analysis before the chick could go back up the tree to
its nest. Once the chick was settled it was off to the next nest
site; some of them were on the top of pylons! This year more than
forty chicks were ringed and tagged.
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Raptor watching! |
A couple times of during our stay, Mark
took us to see one of his greatest achievements. With some help from
friends, Mark has built a new island at a place called Kampers Dam.
Already a feeding site for the rare Lesser Flamingo, it is hoped the
flamingos will use the island to breed on, making it only the third
site in Africa! Whilst we were there things looked hopeful as we saw
a lot of displaying and nest making.
Our next few days were spent building a
hide at a ‘vulture restaurant’; fortunately Andy had persuaded an
expert to join us. Adam took responsibility for the construction
along with Angus. Whilst the boys constructed the frame and the
door, Jane and I artistically painted the tin roof. We all then
helped put the canvass around the frame and it was ready to be used
to monitor the ringed and tagged vultures, providing information on
their movements and behaviour.
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Dronfield vulture
restaurant hide - the team and the finished article |
We had just enough time for a bit of
sightseeing before going home - well, raptor spotting! On our
journey to and from the Kalahari we saw vultures galore, plus a
Secretary bird, Pygmy Falcons, Black Eagles, and Pale Chanting
Goshawks or PCGs as they became known, as we saw so many.
Our last day came sooner than I wanted,
but we had just enough time to go back to the hide to see if any
vultures were there. Around sixty vultures were in the area, some
circling in thermals. We even saw a Lappet-faced Vulture perched
just meters from the hide. It was a success; the vultures were
unperturbed by the new addition to the landscape, coming down to
feed on a carcass.
Since our return, the hide has already
been improved with money given by the De Beers who own the land;
looks like we started something big! All we need now is to raise
funds for a web cam so everyone can enjoy seeing the vultures, as if
they were sat in the hide themselves.