How high do birds fly? : development of methods and analysis of digital aerial data of seabird flight heights /
Johnston, Alison(Ecological statistician)author.
Cook, A. S. C. P.,author.
British Trust for Ornithology.
Natural England (Agency),issuing body.
Crown Estate Commissioners (Great Britain),issuing body.
"February 2016."
"Report of work carried out by the British Trust for Ornithology on behalf of Natural England and The Crown Estate."
Includes bibliography.
Aerial surveys
Bird surveys
Sea birds
Wind turbine bird strikes