the lack of knowledge on such transfrontier migrations could place in question the reliability of statistical data on the population numbers of important animal species permanently inhabiting the territory of albania in particular bird and large carnivore species the common practice is to carry out research each year only in a few selected small areas eg protected areas and similar research is conducted in remaining areas in other years the law on protected areas was amended in by inclusion of the main provisions of the habitats directive the law on the protection of wild fauna endorsed provisions of the birds directive related to protection measures