Hochster, C.P. 1965 Feb. 12 General Erdelburg Island nestlings and adults in the cordia grove. At 6 p.m we all went down to the south end of the island for a small Sooty Tern colony and blood sampled 100 birds in order to obtain 50 samples. Two people netted the birds and three people sampled. During the first portion of the island survey two dead lincks were found on which the breasts had been eaten off. No other parts of these two birds had been touched. This looks suspiciously like the work of a cat. While herding the Red-foots we saw an adult return to the nest almost immediately after being disturbed, and kill its chick. The bird landed on the nest stabbed the chick several times, rapidly, and then threw it out of the nest. This is the first time I've witnessed this type of behavior even though we customarily find in this colony on each trip. The chick that was killed seems more than three or four days old. There has been a noticeable drop in the numbers of Blue-faced Petrels encountered through this trip. The chicks are much smaller than usual and very few birds are nesting. The Fairy Tern population on McKean Island was also lower than normal. At dusk we watched for shearwaters but none were seen. Sailed out at 9:30 planning to get up when the moon goes down to complete the blood sampling. Tonight we'll only have about 1 hour of darkness before sunrise. Tomorrow night, there won't be any. Landing large numbers of birds on this island will be not too impossible