A long-term analysis of the declining population of the Egyptian Vulture in the Italian peninsula: distribution, habitat preference, productivity and conservation implications. Biological Conservation 101: 381–389
2002. Immediate species responses to catastrophic natural-disturbances: windthrow effects on density, productivity, nesting stand choice and fidelity in Northern Goshawks (Accipiter gentilis). Auk 119: 1132–1137
2002. Landscape structure and food supply affect eagle owl (Bubo bubo) density and breeding performance: a case of intra-population heterogeneity. Journal of Zoology 257: 365–372