@article{cestari_2009,  title={Heterospecific sociality of birds on beaches from southeastern Brazil},  volume={26},  ISSN={1984-4670},  url={https://doi.org/10.1590/S1984-46702009005000013},  DOI={10.1590/S1984-46702009005000013},  number={4},  journal={Zoologia (Curitiba)},  publisher={Sociedade Brasileira de Zoologia},  author={Cestari, César},  year={2009},  month={Dec},  pages={594–600} }