DE CASTRO, Julio et al. PREDATION OF YELLOW-BILLED HORNBILL ON ADULT SOUTHERN GREY-HEADED SPARROW. Biodiversity Observations, [S.l.], v. 9, p. 9.5:1-7, july 2018. ISSN 2219-0341. Available at: <https://journals.uct.ac.za/index.php/BO/article/view/500>. Date accessed: 13 nov. 2018. doi: https://doi.org/10.15641/bo.v9i0.500.