"The Marbled Murrelet (Brachyramphus marmoratus) is a small diving seabird of the Alcid family which is on the Federally Threatened Species list, and is state listed as endangered or threatened in California, Oregon, and Washington (Nelson, 1997). Because their nests are dispersed and difficult to locate within old forests on the west coast, most research on overall abundance and reproductive output is conducted at sea, where the birds are concentrated within a few km of shore on the open coast...In this report we provide a description of the new design and how some parameters of sampling were chosen, and present population estimates for Oregon using the new and prior survey program." (From Introduction)
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