Dataset supporting the ecological study on the relation between breeding grey herons and urban brown rats at Flevopark, the Netherlands

The datasheet covers the observational data of chew cards at Flevopark, a green urban space in Amsterdam. The data was used to study the relation between breeding grey herons and urban brown rats. The study area was divided in two. In one area, the grey herons were breeding, and in the other area they were not. Observed is whether there was a difference in the amount of rat responses on the chew cards between the two areas.