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Of 18 species of native Guamanian birds, seven are extinct, two are extinct in the wild (the Guam Rail, pictured left, and the Micronesian Kingfisher survive only in captivity), six are rare, and three are uncommon.n Guam, brown tree snakes found dense forests that were teeming with the birds and small lizards that are their natural foods. No enemies slowed their spread, and their numbers mushroomed. The snake populations moved steadily north at a rate of a mile per year from their southern landfall.
Endangered Species in the Pacific Islands. This regal goose is Hawaiâiâs state bird. The nÄnÄ measures between 24 to 27 inches in length, has a black head and bill, buff cheeks, a buff neck with dark furrows, and partially webbed black feet. The reduction of webbing between their toes and upright posture enables them to walk more easily on the rugged lava flows.