In recent years the status of the Golden Eagle Aquila chrjsaetos in Scotland has been the subject of concern. Lockie and Ratcliffe (1964) found that the breeding success in Wester Ross fell from about 70% of pairs in 1937-60 to about 30% in 1960-63. At the same time the proportion of non-breeding pairs (pairs present in their usual nesting areas without laying eggs) increased from about 3% to 41%....

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