Male Montagu's Harrier with broad white rump patch
On 19th June 1978, south of the River Guadalquivir near Lebrija, Spain, D.J. Fisher, S.J. M. Gantlett and I saw a male Montagu's Harrier Circus pygargus which was typical in every way of an adult male (a rather dark grey individual) except that it showed a broad and prominent white patch on the rump. On 11th June 1981, near Sarinena, northern Spa
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