The objective of this paper is to identify the best approach to eradicate bird electrocution in an important bird area of northeast Spain. To do so, the pattern of bird electrocution in the area is analysed and several predictive models are constructed, in order to identify high hazard pylons. On the basis of these models, the performance of several strategies for the allocation of the mitigation actions are compared in terms of the cost-effective reduction of casualties. Key words: birds of prey, Catalonia, conservation, electrocution, Lérida, logistic model, power lines, Spain.