27 June cont. will egg in oviduct. On mounds, most on S. side, fewer on N. side. Puffinus nativitatis(?) - One bird seen briefly in flight thought to be this species. Frigate-bird - 30 ± 10 seen roosting in cocooning trees, no nests seen. I attacked on body seen. Good, what rough play! Red-footed booby - several hundred nests in seawall. Most young are large & getting pinions, some naked young seen. Called "Blue-Bills" 3 ways. Masked Booby - saw 1 pr., apparently 4 pairs on island. Did not see egg or young, but birds were close to nest site. will check on Mon. (called Silver-bell) Red-tailed Tropic Bird - nesting similarly under brush wherever it is available. Most with well-incubated eggs or small young - down. Common Noddy - 50 ± 20 birds in area we were working, 3 of running just W. of Communications Tower. Have seen No Hawaiian Noddies on Eastern, no Common Noddies on Sand.