@article{bierrergaard jr._1982,  title={Levantamentos ornitológicos no dossel da mata pluvial de terra firme},  volume={12},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921982123S107},  DOI={10.1590/1809-43921982123S107},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Bierrergaard Jr., Richard O.},  year={1982},  pages={107–111} }