“…The effects of zoo visitors on zoo animals are now well documented, ranging from highly negative, to innocuous, to positive experiences (Claxton, 2011;Collins et al, 2016;Davey, 2007a;D'Cruze et al, 2019;Fernandez et al, 2009Fernandez et al, , 2021Jones et al, 2016;Kreger & Mench, 1995;Mitchell et al, 1992;. Some examples of factors that influence animal responses to visitors have included visitor noise-level, proximity, and presence versus absence of visitors (Carder & Semple, 2008;Chiew, Butler et al, 2019;Chiew et al, 2020Chiew et al, , 2021Larsen et al, 2014;Learmonth et al, 2018;Sherwen, Harvey et al, 2015;. Additionally, these visitor effects on zoo animals have been examined through both the behavioral responses of the animals and through physiological responses, such as the sampling of glucocorticoid concentrations through non-invasive fecal glucocorticoid metabolites (FGM; Chiew, Butler et al, 2019;Chiew et al, 2021;Fanson & Wielebnowski, 2013;Keay et al, 2006;Pifarré et al, 2012;Kuhar, 2008;Sellinger & Ha, 2005;Sherwen et al, 2014;Sherwen, Harvey et al, 2015;.…”