Penteriani, V., Alonso-Alvarez, C., Delgado, M.M., Sergio, F., Ferrer, M. 2006. Brightness variability in the white badge of the Eagle Owl Bubo bubo. Journal of Avian Biology 37: 110 – 116.
Key words: eurasian eagle-owl, bubo bubo, plumage brightness, visual signaling, white feathers
Year: 2006