Now
in its final stage, the Harrier campaign brings both the joy of
witnessing fledged birds soaring and swooping and learning to hunt or
the bitter disappointment of discovering that, after all the efforts
made to protect them, they nevertheless succumbed to the laws of
nature.
A
farmer contacted the local group to say that he had found a nest
whilst harvesting, so we went out to put some mesh around the area in
order to protect the chicks from terrestrial predators like foxes or
dogs. As we approached the mother Montagu Harrier rose up revealing
her secret nest.
secret nest |
This
is what we found. Three recently hatched chicks.
Protecting the new chicks Photos Jose Luuis Sanchez |
We
then went to check on another nest: this time all but one of the
chicks had fledged, the last being days away from flying. Its
sibling flew away as our colleague approached but it settled on a
haystack and stayed there until we had left. They are still
dependent on their parents for food so will return to the nest for
safety.
Thanks to José Luis Sánchez for the photographs.
Thanks to José Luis Sánchez for the photographs.
Vigilant chick on stack |
The
third nest we checked on was suspiciously void of movement, as the
chicks should by now have fledged. When we got there we looked in on
a scene of avian carnage. Despite the protective barrier a large
raptor, possibly the Booted, Golden or Imperial Eagle had been there
before us and all that was left were the remains of
wings, heads, and a little further off more feathers. Such is life,
and we hope they may have served to feed the chicks of one of the
eagles.
As
we drove through the cereal steppes we couldn't help noticing the red
plastic tubes scattered around on the edges of the fields. These
containers are the unpleasant reminders of the Castilla y León
governments 'solution' to plagues of Vole Microtus arvalis
: poisoned grain was held within them, containing
the extremely toxic rodenticides chlorophacinone
and
bromadiolone. As voles actually prefer to graze on fresh shoots, and
their cyclical population explosions lead to a natural mass die-out,
the result of this
government folly was a massive poisoning of most of the mammal and
avian species in the area, either by ingesting the lethal grain or
through ingesting poisoned animals. Thus thousand of mammals and
birds including endangered species were lost through stupid decisions
by ignorant politicians who should have known better.
Poisoned grain container |
This
year when (unjustified) alarms were raised that we should expect
another plague and the autonomous government purchased 86 tons of
poisoned grain, an allegiance was formed between the SEO (Spanish
Ornithological Society), Ecologists in Action, the hunters
association and various scientific bodies and NGOs and they managed
to dissuade the authorities from repeating their insanity. There are
very effective natural ways of controlling plagues, which involve
placing nest boxes to encourage various predators such as Kestrel,
Short-eared owl and Barn owl.
On a
more positive note our wren family is doing well and the Booted Eagle
chicks are due to fly any day now. They stand up on their mighty
legs and flap their wings and show all their raptor potencial.
Birding with my magnum |
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