C. G. Loren Station, Sand Island, Johnston Island Atoll Berlese funnel. Check two Sooty Terns (one adult and one immature), which had broken wings, for ectoparasites (mallophaga and feather mites). Did find one chigger on head of adult. Placed litter sample from Sooty Tern area in Berlese funnel. Set up a roost made out of 12 foot plank to try to catch more at night. Saw two Sooty Terns with chicks which had just hatched. Very few of these left however. Banded a Red-tailed Tropicbird under a small Mesoschmidt plant--Maybe starting to nest? Ken opened three hundred Sooty Tern bands (number threes) and these were used up on Immature after dark. Ken did two hundred. I did one hundred Sooties, twenty-four Frigates (39's , 21 o's), two Brown Boobies and four Red-footed Boobies. Those with nests or chicks were captured on the little offshore island. The Masked Booby landed last night was back again. The red paint on the beaks of the Frigates banded last night shows up very well. The low tide again coincided with complete darkness and I had no trouble wading across the shallow water. A small (local Gray-backed Tern was seen on the island where the adults roost. This makes a total of two immature (one immature, one local) and one egg recorded on Sand Island so far. Several more unbanded Christmas Island Shearwaters were seen tonight in the area where the Brown Boobies nest. I'll try to band these tomorrow night. July 17, 1963 This morning Ken and I made a "blind" out of a large wooden crate