Tawny Owl (Strix aluco) Science Article 1
[…].A Tawny Owl population in Bizkaia was monitored between 1992 and 2003, producing a description of its breeding ecology (Zuberogoitia & Campos, 1998; Zuberogoitia & Martinez, 2000; Zuberogoitia, 2002). During the course of the study, one possible case of a second brood was registered. 1,700 Tawny Owl territories were found, although only 77 nest sites were monitored. […].
Inigo Zuberogoitia, Jose Antonio Martinez, Agurtzane Ir ta, Ainara Azkona & Inaki Castillo, Ardeola 51(2), 2004, 437-439