Ludwig, JP 1964 31 Even so, a large number of white-tailed Tropicbirds were active there, flying and courting in the air. All birds have the long tail plumes and I have the impression from watching these that they will soon have eggs. Then returned via Nowiliwili to Kilauea. Gerry Swedberg recommended that we look there on the Bishop Estate for Newell's Shearwaters. How- ever, since it was raining there I decided to work along the coast to- wards Kilauea for wedgetails. Checked Moaloe Beach and area finding none. Then moved to Kilauea at 1800. Swedberg also noted a concentra- tion of wedgetails on the Princeville Ranch west of Kilauea: Contact Mr. Conant for aid and direction at the ranch - Kilauea 1800: Counted 289 red-footed boobies (less the 2 lower roosts which could not be seen) here and estimated 390-425 at 1810. Wedgetails are already coming in from the sea. At least 25 individuals in the air as of 1815, a number (15-35) already on the ground. During banding tonight I followed all the way to base of cliff and wedgetail nests extend all the way to spray line. Wedgetail nests are spread over an area approximately 75-100 yards wide (from lip of slope to spray line) and close to 300 yards long. Burrows are densely packed in many placed and my estimate of 2000-2500 burrows on this point seems well founded. Fully 60 percent of these are inaccessible except by repelling down the edges of the cliff. Once tonight I fell 30-40' trying to reach some of these birds and to determine how far down they went. With a great effort probably 2000 birds could be banded here, but it would be dangerous. A total.