91. Sexual structure of single birds in NAF colony, 5 Jan., 1965 ♂ ♀ 1400 3 1 1500 7 1 1600 11 2 1700 8 4 This seems to indicate the earlier arrival of the ♂ to their platforms. There were 5 gulls on S. pt. today - one Glaucus and 4 Glaucus-winged Gulls. Worked on 6 more Laysans this afternoon - found one with a large hook in the neck, which we removed. Some- body probably fishing for gooneys from a ship somewhere. Found some very nice large black mallophaga in the upper wing coverts of two of the gooneys - the first ones like this we have found. Also some mite-like parasites in the neck. We now have cards on 32, needing 18 more to comple te our 50. Total no. boobies in NAF colony, hourly, from 0800 to 1800. 73; 12; 3; 7; 8; 9; 12; 19; 37; 80; 85. 6 Jan. We had an afternoon full of rain, I worked on a long overdue letter to Dr. Dilger regarding Boobies here on Kure. Also did some paper work . All in all, a rather uneventfull day outside the lab. 7 Jan. Working on plant plot figures from Nov., this will consume several rainy afternoons. Dennis working on skins. It clears in the afternoon, so we go out and work with six more Gooneys - one of the birds flinched vigorously as we were bleeding it, and must have ripped the heart, for he died within 2 minutes of bieng released. Will be made into a skin. I could not find or feel a heart on one bird, so we did not bleed it. So - 5 more blood samples, 6 more McBeed cards with data and lots more nifty ectop arasites. Behavior of boobies neat, with R2 trying to get R22, who is with another male nearby. 8 Jan. This day was spent on the N. tower, all day activity count. One RED Frigate was seen over W. beach, and one Red RF8 flew and landed in the N. roost. The general impression one gets, however, is that there is a very limited amount of roost exchange inthese two