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First geolocator of the season retrieved | 16 June 2015 15:34 |
Today we retrieved the first geolocator which has travelled from the arctic to the antarctic on a tern leg. Margje de Jong made this pictures with her brand new camera. |
we catch the tern with a simple cage, a stick and a rope |
the rope is 30 meter long |
de tern is checking ther nest, while hovering |
caught |
Suzanne retrieves the tern |
the old geolocator is attached to a blue ring |
the metal ring is read with the tern on its back |
than we measure the size and mass of the bird |
total tarsus |
headbill |
bill length |
bill height |
wing (but with the end of the ruler better on the front of the wing) |
tailfork right |
tailfork left |
the new geolocator is attached on an engraved colour ring |
difficult to get around the leg |
readable with a telsescope as black LF |
a bit of fast glue |
in the bag on the scale fr body mass |
one last portrait |
and there she goes.... |
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