Cameraval bij sperwernest Accipiter nisus in de duinen bij Castricum in 2020
De Takkeling , Volume 29 - Issue 2 p. 141- 145
A trap camera was installed at the nest of a Sparrowhawk in the dunes near Castricum on 14 May 2020. The first clutch was probably lost in early May and a repeat clutch was started on 19 May. The second attempt failed as well, some time after the trap camera had stopped taking pictures on May 28. The cause of failure therefore remained a mystery.
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