ATF No. 6 DRAFT 3. Line Island Warbler - Conopoderas aequinoctialis - this species is rare on Christmas and common on Washington, but is far less conspicuous than in June. MAMMALS No mammals exist on three (Howland, McKean, and Enderbury) of the islands visited. Only one mammal is present on Baker, Phoenix, Birnie, and Palmyra. The other six islands have one or more formerly domesticated species in addition to the rats and mice. Rabbit - Oryctotgus cuniculus - this species is abundant on Phoenix but has not noticeably reduced the vegetation despite the long dry spell. Pig - Sus scrofa - this was a common domestic animal on Gardner in 1963 and it is possible that a few were left and still survive. Polynesian Rat - Rattus exulans - on Sydney and the small islands of Christmas Island this is a common species. On Birnie Island it is super abundant and may be eliminating the vegetation. Rattus sp? - some species other than R. exulans is common on Washington, Palmyra and Christmas. House Mouse - Mus musculus - it is abundant on Baker Island. On Jarvis Island it is common having increased with the reduction in the number of cats. Cetacea - a porpoise skeleton and a small whale skull were collected on Sydney and a partial porpoise skeleton was collected on Jarvis. Dog - Canis familiaris - kept as pets on Christmas and Washington. A few left by former inhabitants are still alive on Gardner, and Sydney. On Gardner at least 10 dead dogs were found in various stages of decay indicating that they may all die off in time. Cat - Felis domesticus - present in small numbers on Gardner, Sydney, Christmas and Washington. On Jarvis Island only 10-20 cats still exist of the 300 plus present in March 1964.