Kopij, Grzegorz. “Distribution and Population Densities of Selected Uncommon Bird Species in Zambezi Riparian Forest, NE Namibia”. Acta Biologica Sibirica 5, no. 4 (November 23, 2019): 5-11. Accessed September 25, 2021. http://journal.asu.ru/biol/article/view/6724.