Endangered and Threatened Wildlife and Plants; Revised Critical Habitat for the Marbled Murrelet

We, the U.S. Fish and Wildlife Service (Service), are revising designated critical habitat for marbled murrelet (Brachyramphus marmoratus marmoratus) pursuant to the Endangered Species Act of 1973, as amended (Act). On May 24, 1996, we designated 3,887,800 ac (ac) (1,573,340 hectares (ha)) as critical habitat for the marbled murrelet in Washington, Oregon, and California. We are revising the designated critical habitat for the marbled murrelet by removing approximately 189,671 ac (76,757 ha) in northern California and southern Oregon from the 1996 designation, based on new information indicating that these areas do not meet the definition of critical habitat. The areas being removed from the 1996 designation in northern California are within Inland Zone 2, where we have no historical or current survey records documenting marbled murrelet presence. Intensive surveys in southern Oregon indicate the inland distribution of the marbled murrelet is strongly associated with the hemlock/tanoak habitat zone, rather than distance from the coast. Accordingly, the areas being removed in southern Oregon are limited to those areas not associated with the hemlock/tanoak zone. The areas being removed are not considered essential for the conservation of the species. Approximately 3,698,100 ac (1,497,000 ha) of critical habitat is now designated for the marbled murrelet. In this rule, we are also finalizing the taxonomic revision of the scientific name of the marbled murrelet from Brachyramphus marmoratus marmoratus to Brachyramphus marmoratus.