Tuesday, June 15, 2010

Bittern chicks small and vulnerable

Clearly a big knowledge gap is on the breeding biology of bitterns in NZ. With bittern chicks being so small and often spread out from the nest basin I wonder just what the predation impact is on bittern chicks from what appears to be an increasing harrier population. Clearly this photograph demonstrates that human predation was also a problem in the past !!! If anyone has any recent reports (last three years )of breeding bittern I am certainly keen to receive them-

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