ABSTRACT
In the literature on animals' spatial cognition several investigators have started to use photographs and digitized computer images as stimulus materials. In the current paper a representative overview of this research is described. Research on the following topics is reviewed: 1) habitat preference in migrating birds, 2) conceptual categorization of naturalistic spatial locations, 3) pigeons' use of landmarks in pictures of naturalistic spatial locations, 4) pigeons' attention to certain features in naturalistic spatial locations, and 5) pigeons' attention to the natural horizon. The paper concludes by describing the broad generalizations that emerge from this research.
