R.Clapp 1964 Oct. 11 Sibylla Island, Taongi Atoll Redfoots are apparently breeding to some small extent and others are coming into breeding condition. Quite a number were seen carrying nest- ing material and quite a few were being chased by frigates (males as well as females.) Several male great frigates had inflated throat pouches. Estimates for that part of "Taongi with which I am familiar : Great Frigate : 4000-5000 breeding Red-footed Booby 3000 breeding Blue-faced Booby 400 few breeding Brown Booby 400 none breeding Bristle-t-Curlew 50 Wandering Tattler 150 Golden Plover 200 Ruddy Tyrnstone 250 Fairy Tern 400 Sooty Tern ? Common Noddy 200 Hawaiian Noddy 300 Reef Heron 25-30 Crested Tern 25-30 R.T. Tropic Bird 400 Black-naped Tern " 25 Blue-gray Noddy ? Three ducks were seen beating over the island toward the center of the island from the S. All were female or winter plumage birds. I did not get a good look at them but all very large and brown, probably Anas, possibly acuta A Male Frigate was observed displaying from the nest. The pouch was fully expanded and the head thrown back until the bill pointed towards the slightly elevated tail. Thw wings were spread and quivered ululates. By far the greater number of great frigate nests were found in Messerschmidia from 4-10 feet up.