In this study, we use the RUBS data to examine spatial and temporal associations between populations and trends in ravens and waders. Spatially, using data from the repeat surveys, we explore whether wader abundance correlates negatively with raven abundance. Temporally, we examine whether the changes in the abundance of any wader species are negatively associated with either raven abundance in the repeat survey or the change in raven abundance between the two survey periods on a plot.
