11 have a dusky brown belly as immatures: Once they loose their down they are easily distinguished from Masked Chicks. Red-footed Boobys nest in the Scaevola tops. Adults have bright red feet and weigh 2 to three pounds. Chicks remain in the scaevola, and are greyish in color with greyish to greyish-red feet. Caught up on the banding schedules and collected another masked booby immature with a broken wing. It seems as though broken wings ( from collisions with the Loran Tower guy-wires ? ) are a major cause of juvenile mortality in this species. Of 13 non-flying chicks alive in area to the north of the LORAN tower three have had broken wings. Since they will eventually have died without contributing any offspring to their species, I have collected all three. All breaks have occurred in the area of the wing from the distal end of the humerus to the middle of the radius and ulna indica- ting injuries during flight. 10-2-63 Surveyed and made maps of vegitation in the two shearwater study areas, and took a few pictures of the boobies nearby. Rain at 1000 and skinned booby in after- noon. Saw a dowitcher after dinner, but could not get close enough to collect it. 10-3-63 Heavy rain all night and until 1200 today - seems as though it will never stop. Skinned a booby this morning ( the third immature Masked with a broken wing ) and hunted in the afternoon, bagging a Short- billed Dowitcher in the process. There may also be a Phalarope here, but at 1900 when I saw him the light was too poor to be at all sure of this identification. In the evening we banded on the Shearwater plot 2, but found few birds above ground, although there were many moaning below ground. Apparently the bright light of the full moon and the wetness of the grass and ground kept them in their burrows. Bill caught a lizard of a sort that I have never seen: This thing has an immense tail.