The effect of intra- and interspecific interactions on the large-scale distribution of cliff-nesting raptors
2008. Martínez, J.E., Martínez, J.A., Zuberogoitia, I., Zabala, J., Redpath, S.M. & Calvo, J.F. 2008. The effect of intra- and interspecific interactions on the large-scale distribution of cliff-nesting raptors. Ornis Fennica 85:13-21