The temporary ban on dogs in Huygenspark has been lifted. No additional dead birds have been found since 23 November 2018. A large number (337) of dead starlings were found in Huygenspark between 19 October and 23 November 2018.


The investigations into viral and bacterial infections did not produce any results. There were also no positive results for the investigations into poisoning by rat poison. Also there were no 5G tests conducted for a new network for mobile telephones around Huygenspark. This could also be ruled out as a cause of death.

Additional investigation into cause

At the request of the municipality additional research was carried out by Wageningen Bioveterinary Research in Lelystad. The results revealed:

  • there were no indications that the birds died from unnatural poisoning
  • the birds showed traces of poison from taxus shrubs (yews) and the researchers found decomposition products in the birds

The red berries from the taxus shrub are often consumed by birds and usually they do not die from eating them. Wageningen Bioveterinary Research will now conduct further research into this. The results are expected within 2 weeks.

Have you found a dead animal?

Report a dead fish or bird as quickly as possible to the ‘Meldpunt Toezicht’ at the Hoogheemraadschap van Delfland (Delfland Water Board).





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