Attributes / relations provided by
♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 2Summer diet of the sable Martes zibellina in the Middle Yenisei taiga, Siberia, Marcin BRZEZINĚSKI, Acta Theriologica 39 (1): 103-107, 1994.