A course offered by Barcelona Zoological Park given by lecturers from the University of Barcelona and the Autonomous University of Barcelona and by professionals and technicians from the Zoo. It is aimed at students and people interested in zoology and, more specifically, in this study of the behaviour of animals and in its methodology. The contents of the course are an extension and continuation of the course on the introduction to ethology as, in this case, it deals with the methodologies applied to the study of the behaviour of animals and their behavioural patterns.