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Isabelline Wheatear (Oenanthe isabellina) perched on rock. Central Balkan National Park. Bulgaria.

Isabelline Wheatear (Oenanthe isabellina) perched on rock. Central Balkan National Park. Bulgaria.

Isabelline Wheatear (Oenanthe isabellina) perched on rock. Central Balkan National Park. Bulgaria.