Great Frigatebird Numbers of this species increased 133% from six in June to fourteen in July. All were observed within 400 miles of Oahu. Sooty Tern Sooty Terns increased in numbers in July to 2555, a 5% gain over the 2413 seen in June. Concentrations were heaviest just south of Oahu and in an area from 275 to 325 miles northeast of Oahu. Immature birds were seen often, usually in flocks or accompanied by an adult, but on two occasions immature birds were observed flying alone. In the southern half of the grid area birds were seen changing to adult plumage. Noddy Tern Three hundred eight of this species were seen in July, all within sight of Oahu. Four were seen on one occasion perched on a small floating branch. As the ship approached Oahu on 1 August, Noddy Terns far out- numbered Sooty Terns for the first time during these cruises, indicating that the majority of Sooty Terns breeding in the area had completed their breeding cycles and had dispersed, while the Noddy Terns were still raising chicks. Fairy Tern Numbers of this species increased 28% from 18 in June to 23 in July. All were seen within 400 miles of Oahu. Shorebird sp. On 19 July an all brown shorebird circled the ship twice. It may possibly have been a Golden Plover. This was the first shorebird to have been seen in the grid area since the April cruise.