The first objective of this thesis was to describe the causes of admission of raptors in Torreferrussa Wildlife Centre (Barcelona), during the years 1995 to 2007 and to assess throughout the study period seasonal variations and differences related to demographics such as age, sex or zoological order. In the first study, frequencies of the causes of income are presented in accordance with the specified variables; in addition, for the first time the concept of cumulative incidence Seasonal (SCI) is introduced referring to the estimated populations of different species. In this study is showed that anthropogenic causes both direct and indirect, are the most common. Another aim of the thesis was to express the results of the clinical evolution and outcomes of the rehabilitation process of wild raptors from the perspective of quality control, an issue of novel application in wildlife medicine. Thus, in the second and third work, an analysis of the results of the rehabilitation practice was made stratifying by causes, species and clinical signs. It was concluded that it is necessary to present data on rates such as the release, unattended death (natural death), euthanasia, and not recovered or kept in captivity for life. Other useful parameters are the length of stay in the hospital or "time to release" and "time to death". Finally, with the end goal of estimating the prognostic factors of the rehabilitation process in wild raptors, the fourth study analyzed the variables that might be predictive of the clinical course of raptors during the first week of admission at the center.