Becker BH, Beissinger SR, Carter HR (1997) At-sea density monitoring of Marbled Murrelets in central California: Methodological considerations. Condor 99:743-755

Briggs KT, Tyler WMB, Lewis DB, Carlson DR (1987) Bird communities at sea off California: 1975 to 1983. In: Pitelka FA (ed) Studies in Avian Biology No 11. Cooper Ornithological Society, Los Angeles, p 74

Briggs KT, Varoujean DH, Williams WW, Ford RG, Bonnell ML, Casey JL (1992) Seabirds of the Oregon and Washington OCS, 1989-1990. In: Brueggeman JJ (ed) Oregon and Washington Marine Mammal and Seabird Surveys, Vol Chapter 3. Final Report to the Pacific OCS Region, Minerals Management Service, U.S. Dept. of the Interior, Los Angeles, CA, p 162 pp

Henkel LA (2003) The distribution and abundance of marine birds in nearshore waters of Monterey Bay, California. M.S. Thesis, Moss Landing Marine Laboratories and California State University, Monterey Bay

Rodway MS, Carter HR, Sealy SG, Campbell RW (1992) Status of the Marbled Murrelet in British Columbia. Proceedings of the Western Foundation of Vertebrate Zoology 5:17-41

Wahl TR, Tweit B (2000) Seabird abundances off Washington, 1972-1998. Western Birds 31:69-88

Monterey Bay National Marine Sanctuary, Sanctuary Integrated Monitoring Nework (SIMoN), Seabirds & Shorebirds, Projects.

http://www.sanctuarymonitoring.org/regional_sections/birds/projects.php?sec=ss

California Department of Fish and Game, Habitat Conservation Planning Branch, California's Plants and Animals, Marbled Murrelet.
Visit website

Committee on the Status of Endangered Wildlife in Canada (COSEWIC) Marbled Murrelet Recovery Team.
http://www.sfu.ca/biology/wildberg/bertram/mamurt/

Cornell Lab of Ornithology, All About Birds, Marble Murrelet, listen to call http://www.birds.cornell.edu/programs/
AllAboutBirds/BirdGuide/Marbled_Murrelet_dtl.html#sound

Hinterland Who’s Who, Marbled Murrelet, includes sound clip http://www.hww.ca/hww2.asp?id=55

Sustainable Ecosystems Institute, Endangered Species Program, Marbled Murrelet information and research summaries.
http://www.sei.org/murrelet.html

The Pacific Northwest Interagency Regional Monitoring Program, Marbled Murrelet Monitoring. http://www.reo.gov/monitoring/murrelet/index.htm

The Audubon Society WatchList.
http://audubon2.org/webapp/watchlist/viewSpecies.jsp?id=130

U.S. Forest Service, Pacific Southwest Research Station, Marbled Murrelet Research Projects. http://www.fs.fed.us/psw/topics/wildlife/birdmon/mamu/

Figure 2. Densities of Marbled Murrelets along California coast by coastal sections. Proportional circles indicate densities per 2-km coastal segment (12 km²). The largest circle (Big Lagoon to Trinidad) equals a density of 8.81 birds/km². Areas of old-growth forests are shown inland as shaded areas.³⁰

Figure 3. Location of Marbled Murrelet nesting habitat in the Santa Cruz Mountains. Black stars show the location of identified nests.¹⁵

Figure 4. The distribution and abundance of the Marbled Murrelet in central California in three different oceanographic seasons: Upwelling (a); Oceanic (b); and Davidson (c). Panel (d) combines the three other panels to show seasonal high use areas. Blue lines indicate the boundaries of the Cordell Bank, Gulf of the Farallones and Monterey Bay National Marine Sanctuaries.⁷

Figure 5. Mean monthly density of Marbled Murrelets occurring in nearshore Monterey Bay (based on surveys between Capitola and Monterey Harbor from 1999 to 2001). Marbled Murrelets are generally absent during the breeding season. Abundance increases with the arrival of post-breeding adults and fledglings.³¹

Figure 6. Locations of two tagged Marbled Murrelets tracked during the post-breeding season. The timing and direction of long distance movements are provided with dates and stippled arrows.⁹

Figure 7. Average annual Marbled Murrelet activity at five stations in Big Basin, showing total detections (± s.d) with linear regression trend. (Note: no data from 1997, 1999 or 2000.)⁶