From the Introduction:
For 14 months we conducted bird surveys on the Mendenhall Wetlands State Game Refuge. The principal goal of this survey was to document areas of the wetlands that hosted large concentrations of birds at various seasons; these areas were called ‘hotspots’ of bird activity. A secondary goal was a rough comparison of present bird abundances with those recorded by Cain et al. (1988), using different methods. A third goal, which emerged as we were conducting the bird surveys, was a synopsis of bird phenology on the wetlands, showing seasonal patterns of use.