2008. Zuberogoitia, I., Martínez, J.A., Azkona, A., Martínez, J.E., Castillo, I. & Zabala, J. 2008. Using recruitment age, territorial fidelity and dispersal as decisive tools in the conservation and management of peregrine falcon (Falco peregrinus) populations: the case of a healthy population in Nothern Spain. Journal of Ornithology.