coordinator |
Wim Tijsen
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website | none |
cr-birding | https://cr-birding.org/node/3955 |
ring area | The Netherlands, Wieringen |
animals | 532 |
observations | 13511, of which 1006 are captures |
ringed in | 2000 to 2023 |
The project is a Retrapping Adults for Survival project at the former island of Wieringen on the most northern point of Noord-Holland. Since 2000 several hundreds of birds are ringed. The survival rate differs per year, but is normally between 75 and 95% for adults. Most birds are seen in the breeding area, but there are also some interesting ring readings along the flyway between Netherlands and Africa.
All birds have a wihite ring on the tibia (with a letter followed bij 2 digits). Some birds also have a green flag on the other tibia.
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H69
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