Abundance and reproductive indices of marbled murrelets in Oregon during 2001 : results of at-sea monitoring : annual report to the Oregon Dept. of Fish and Wildlife and the U.S. Fish and Wildlife Service Public Deposited
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"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...This report summarizes population estimation and productivity indice results of the 2001 season and compares these data with earlier research in Oregon." (From Introduction)
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