Published: Volume 60(1), June 2013. Pages 133-142.
We explored the post-breeding home range and autumnal
migratory movements of a sample of the Iberian black stork Ciconia nigra population. A
total of 10 black storks, consisting of 8 nestlings, 1 immature and 1 adult
from Portugal (N = 5) and Spain
(N = 5) were equipped with satellite transmitters and tracked during the
post-breeding period until the autumnal routes were complete. We estimated
adaptive kernels to define the size and structure of the home ranges before
migrating via the Strait
of Gibraltar. Three
storks died in Iberia before
crossing the Strait of Gibraltar (one immediately after leaving the nest and
two during movements across Spain
before crossing the Strait of Gibraltar) and the rest moved to winter in Africa. Before crossing the Strait, the total distance
travelled during the post-breeding period varied considerably among
individuals, ranging from 100
km to more than 800 km. Mean movements per day ranged from 1.5
to 26.1 km.
The tagged Iberian black storks began autumn migration between mid-September
and beginning-October. Most storks flew to the Sahel
without stopovers in 2-3 weeks. The mean autumnal migratory distance of all
Iberian storks together was ± SE, 3,673.5 ± 516 km, and the migration
speed was 208.6 ± 21. We came to the conclusion that the tagged Iberian black
storks show large-scale migration routes similar to other European populations.
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