The article discusses the Assembly of arthropods emerging in the nests of birds that live near human habitations. The regularities of their formation, stages of development of the breeding community, the spatial and functional structure of arthropod communities in conditions of anthropogenic press. The identified community types, depending on the species constituting the basis of the population of the nest and the period of their operation. Studied regularities of formation of zoocenoses birds ' nests since the beginning of the construction of the nest by the bird and the principles of sustainability of the community of inhabitants of the nest.