Two transects were established 10 m apart through the cut plots at Bisley. The transects through the lower plot are 90 m long; the 30 m wide plot taking up the central segment of each. Because of proximity to the access road, transects through the upper plot extend from the plot edge, through the plot and 30 m into adjacent uncut forest. Each transect surveys is resurveyed three times (morning: 0700-1000 hrs, midday: 1000-1430 hrs, and afternoon: 430-1800 hrs) during wet and dry seasons annually. Data collected include species, sex/age, perch height, perch substrate, perch diameter, distance along transect (m), and distance from centerline of the transect (nearest 0.1 m).