R.Clapp 1964 Oct. 12 - Sibylla Island, Taongi Atoll. Possibly male frigates with red-throat pouch and white on the chest may be breeding birds. This afternoon I saw one sitting on a fresh egg in a nest in the Messerschmidtia. Oct. 12-15, Sibylla, Taongi to Bikar, Bikar Atoll Very sick for three days. In rack for most of that time.