Report 614
Bird Collision Avoidance: Empirical evidence and impact assessments
Bowgen, K. & Cook, A.
This study assesses the results of the ORJIP BCA project, using data both from that project and from other surveys of the Thanet Offshore Wind Farm study site.



In response to concerns about the risk of collision between seabirds and offshore wind farms, the Offshore Renewables Joint Industry Programme (ORJIP) funded a study to collect data on seabird collision and avoidance rates at an operational wind farm, referred to as the Bird Collision Avoidance (BCA) study.

Over the course of this study, it became clear that the data collected in relation to avoidance behaviour, termed empirical avoidance rates, may not be directly comparable to the avoidance rates as presently used by collision risk models, such as the Band model. The aim of this work is to consider how best to use the data collected as part of the ORJIP BCA study in order to inform pre-construction assessments of collision risk at offshore wind farms.



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ISSN 0963-8091
Please cite as: Bowgen, K. & Cook, A., (2018), Bird Collision Avoidance: Empirical evidence and impact assessments, JNCC Report 614, ISSN 0963-8091