We investigated the effects of the first Dutch offshore wind farm (OWEZ) on birds. This report was commissioned by NoordzeeWind (a consortium of NUON and Shell).

The development of underwater life on wind turbines was assessed using video footage, pictures and samples collected by professional divers.

In April 2012, we began research into the flight activity and foraging behaviour of cormorants with GPS loggers in the Dutch North Sea. Find the first interesting results here.

Our research, incorporating automated radars, showed that the effects of OWEZ are limited due to its location and small size, in combination with high avoidance rates of seabirds.

Aerial surveys during May 2010 to April 2011 provided data on the distribution, numbers and flight heights of seabirds in the search areas for new offshore wind farms in the North Sea. View the report.

GPS loggers helped provide important information as to whether birds are potentially at risk from the effects of future offshore wind farms. View the report.

The effects of multiple wind farms on bird populations from around the North Sea were assessed using population models. The report is now available.

An underwater camera system developed for surveying the seabed has been tested in the North Sea. Images of the seabed can be viewed on our YouTube channel and in the report (in Dutch).

A number of our ecologists are certified Marine Mammal Observers (MMO) and are trained to monitor the effects of offshore activities on marine mammals.