Censusing owls in large areas: a comparison between methods
1998. Zuberogoitia, I., Campos, L.F. 1998. Censusing owls in large areas: a comparison between methods. Ardeola, 45 (1): 47-53.
1998. Zuberogoitia, I., Campos, L.F. 1998. Censusing owls in large areas: a comparison between methods. Ardeola, 45 (1): 47-53.