The knowledge that the team of the Museum has about the population dynamics, social organisation and other ecoethological aspects is of enormous use when defining applied studies to the management of protected species or plague species. The Museum’s studies have mainly centred on three species: the common pigeon, the monk parakeet (Myiopsitta monachus) and the herring gull (Larus argentatus). The efforts are centred on the development of methods of reliable census taking, the study of key factors that determine the distribution and abundance of the diverse species being studied and the estimation of possible occasional damage. The Museum works on these cases under contract or with agreements with other institutions and provides responses and solutions that are eminently practical to the various problems mentioned. In the case of pigeons, for example, the Museum studies have shown that the control of the population by eliminating specimens does not have significant repercussions of the size of the population, mainly due to the presence of compensatory mechanisms such as the increase in the reproduction rate and the redistribution of the specimens in the space.