In this study aspergillosis in 20 five-day -old Turkey duckling submitted from Bingol Turkey Farm was described. Macroscopic examination revealed various sized and spherical granulomas in the lung and air sacs of the animals. Microscopically, there was necrotic foci in the centre of the granulomas which were surrounded by heterophilic granulocyte, macrophage, giant cells and fibrous capsule. The Aspergillus fumigatus miscelliums were determined in the center of granulomas by Periodic Acid Schift and Grocot Methamine Silver stainings.