SNH Commissioned Report 982: Analyses of the fates of satellite tracked golden eagles in Scotland
http://www.snh.org.uk/pdfs/publications/commissioned_reports/982.pdfQuote:
"Of 131 young eagles tracked, as many as 41 (31%) have disappeared (presumably died) under suspicious circumstances significantly connected with contemporaneous records of illegal persecution. These disappearances occurred mainly in six areas of the Highlands (predominantly in the central and eastern Highlands).
Some, but not all, areas managed as grouse moors were strongly associated with the disappearance of many of the tagged eagles.
Tagging revealed that the persecution of young eagles is suppressing the golden eagle population in the central and eastern Highlands, and hampering overall recovery from historic, widespread persecution.
Wind farms were not associated with any recorded golden eagle deaths, and there were very few records of tagged young golden eagles near wind farms.
Operations associated with tagging had no discernible adverse effects on the welfare, behaviour or survival of the birds."
One in three tagged golden eagles died 'suspiciously' in Scotland
http://www.bbc.com/news/uk-scotland-40108063