Archive: September 2024

Sick and weakened swans: “zombie swans”

At the end of last year, the DWHC received the first reports of stunned and weakened swans that behaved like “zombies”. At first, it was thought that there was a resurgence of bird flu (Avian Influenza, AI) among swans. However, investigation showed that they were not infected with it.
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Mannetjes merel op berkenstam

Once again an increased mortality of common blackbirds

The last couple of weeks, an above average amount of ill and dead common blackbirds has been reported to the DWHC from all over the Netherlands. A selection of these birds has been examined and tested positive for infection with the Usutu-virus. This virus has caused a higher mortality among common blackbirds
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