Locality: . Bikini Atoll, Amen, Romuk and Uru islets. Date: August 19, Weather: 1964 Water conditions: Personnel: Calm. Same 14. Cloudy--rains. Heliopora, Porites, Fungia, and a few others. Siltation and debris indicate conditions like those on Runit Island at Eniwetok Atoll. Jackson--no rats, Trap line was set across eastern half of island Amen in morning and removed in late afternoon. Virtually all the traps had been sprung by hermit crabs. There was no indication of rats being present on the island. At the east end where the vegetation is most dense and bunkers are present would be the most likely site. No burrows, feces, runways, or other signs of rats could be found. While nocturnal observations were not made, there seems little possibility that there are any rats on these islands (Amen and Romuk) or the several islands to the west. Lowman--Birds on these islands were nesting and rearing young. Fairy terns, crested and noddy were abundant. fairy and crested terns and a bristle thigh curlew. Collected Observed both wandering tattlers and ruddy turnstones in numbers.