10. Northern adult female. February. Catalunia. Photo by Víctor Estrada-Devesa. This bird follows is still in active moult in late February, with r5 and p9 still growing and p10 is old. Moult ends in late March or early April. Besides that moult sequence, the bird shows a peregrinus phenotype, probably from boreal northern Fennoscandia. These birds, especially females, have dense and spotted/stripped pattern to underparts. They are separated from brookei by an active moult in winter, they are bigger and have a different head pattern.

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