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Op het dak
19 juli 2015 16:13
|Breeding terns on the roof are checked by Janwillem. The roof is free of predation, but we found already a dead chick which was blown off the roof.|
|The only two young terns which survived near the dogyard are ringed. Same nest, different colour.|
|Janwillem has a special coat for checking terns. The coat smells like rotten fish.|
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