Gould, P. J. 1964 Masked Booby 2 2 birds together at 1025 at one point sat together on the water. February 10--Pacific Ocean, Grid Area SW Johnston Island. 1 sub-adult bird seen at 1715 and 1737 hours. February 11--Pacific Ocean, Grid Area SW Johnston Island 1 sub-adult (collected) and 1 imm. seen today. The imm. was observed to dive, spiralling almost straight down from ca. 40' without breaking speed, then remained on water for some time. The first bird was observed to fly together with an Immature Red-footed Booby for some time. The Red-foot usually if not always followed the masked. February 13 1 adult at 0924 flying NE at 30' February 15 1 adult collected at 1348. February 16--Pacific Ocean One adult sitting on a piece of drift wood at 1814. March 3--Pacific Ocean One bird at 1051 in with dispersing flock of terns.