A considerable amount of time ashore was spent burning all cat hiding places and tearing apart all the old trash heaps to chase out cats. Four cats were killed and these almost certainly represented all that remained of the former large population. Howland Island 71 hours were spent ashore doing survey work. 13 species of birds were observed of which 8 were breeding. Wedge-tailed Shearwater and Phoenix Island Petrel are new to the island and the Grey-backed Tern is a new breeding species. All of these changes are believed due to the eradication of cats during the February trip. 81 blood samples were collected, 19 birds of 4 species were collected, and 3141 birds of 7 species were banded with 792 returns. Species No. Banded No. Returns Red-tailed Tropicbird 84 4 Blue-faced Booby 491 779 Brown Booby 6 1 Red-footed Booby 77 8 Great Frigatebird 49 -- Lesser Frigatebird 33 -- Sooty Tern 2400 --