“…Even in a species that does not cache food, what is interesting about the relationship between the homing pigeon HF and spatial memory for food locations is that it implies some modulation of HF-dependent spatial representations by the experience of reward. Indeed, in the mammalian hippocampus literature, there is a growing recognition that hippocampal-dependent spatial maps are influenced by the spatial distribution and properties of reward occurrence (Jeong et al, 2018;Jin & Lee, 2021;Jung et al, 2018;Mamad et al, 2017;Mizumori & Tyron, 2015;Mizumori et al, 2009;Mizumori et al, 2004;Penner & Mizumori, 2012;Retailleau et al, 2012;Tryon et al, 2017;Wiener, 1993;Wood et al, 2000; see Sosa & Giocomo, 2021, for a review). Similarly, avian HF-dependent spatial representations also appear strongly influenced by how rewards are distributed in space.…”