Sandoval, Luis. “Annual and Monthly Variation on Bird Species Richness and Abundance Inside a Tropical Semiurban Agricultural Landscape”. Revista de Biología Tropical 67, no. S2 (April 1, 2019): S298–S314. Accessed December 18, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/37253.