4S 



Biiils — Old Li\iiii; Rt'.sdiOicv 



harbor and other factors. Larger numbers of 

 nesting birds are now suspected in southern 

 CaUfomia (H.R. Carter, unpuhhshed data). A 

 significant portion of the small world popula- 

 tion of this species nests in southern California 

 while the remainder nests on the northwest 

 coast of Baja California, Mexico. This candi- 

 date species may be considered for federal and 

 state listing in the near future. 



Future Efforts 



Because of the continuing decline of and 

 threats to seabirds on broad regional and local 

 levels along the west coast, efforts to determine 

 status and trends of seabirds must be extended 

 beyond cunent levels. Long-tenn efforts must 

 be shared among many federal and state agen- 

 cies, universities, and private groups, including 

 ( 1 ) the development of a coordinated long-term 

 monitoring and research program, including 

 data-base development and maintenance; (2) 

 extending monitoring to all coastal and inland 

 areas and species; (3) developing new method- 

 ologies for surveying nocturnal species of mur- 

 relets, auklets. and storm-petrels; (4) conduct- 

 ing studies of specific conservation problems 

 such as loss of nesting habitats (e.g.. old-growth 

 forests), gill-net mortality (e.g.. Puget Sound), 

 oil-spill mortality, human disturbance, water 

 developments, and agricultural practices; (5) 

 restoring lost or depleted seabird colonies and 

 habitats; and (6) examining the possible long- 

 tenn effects of human fisheries and global cli- 

 mate change on seabird prey resources and nest- 

 ing habitats. 



References 



.\inlev. DC. and RJ. Boekelheide. eds. 1990. Seabirds of 

 the Farallon Islands: ecology, dynamics, and structure of 

 an upwelling-system community. Stanford University 

 Press. Stanford. CA. 450 pp. 



Ainley. D.G.. and G.W. Hant. Jr. IWI. The status and con- 

 servation of seabirds in California. Pages 103-1 14 in J.P 

 Croxall. ed. Seabird status and conservation: a supplement. 

 International Council of Bird Presenation Tech. Bull. 11. 



Ainley. D.G.. and T.J. Lewis, 1974. The history of Farallon 

 Island marine bird population. 1854-1972. Condor 

 76:432-446. 



Ainley. D.G.. W.J. Sydeman, S.A. Hatch, and U.W. Wilson. 

 1994. Seabird population trends along the west coast of 

 North America: causes and extent of regional concor- 

 dance. Studies in Avian Biology 15:1 19-133. 



Anderson. D.W., and F. Gress. 1983. Status of a northern 

 population of California brown pelicans. Condor 85:79- 

 88. 



Anderson, D.W., J.R. Jehl. R.W. Risebrough. L.A. Woods. 

 L.R. DeWeese. and W.G. Edgecomb. 1975. Brown peli- 

 cans: improved reproduction off the southern California 

 coast. Science 190:806-808. 



Bartonek. J.C, and D.N. Nettleship. eds. 1979. 

 Conservation of marine birds of nonhem North America. 

 U.S. Fish and Wildlife Service, Wildlife Res. Rep. II. 

 319 pp. 



Boekelheide. R.J.. and D.G. Ainley. 1989. Age. resource 

 availability, and breeding effort in Brandt's cormorant. 

 Auk 106:389-401, 

 Briggs, K.T.. W.B. Tyler. D.B. Lewis, and D,R, Carlson, 

 ^987. Bird communities at sea off California: 1475 to 

 1983. Studies in Avian Biology 1 1 , 74 pp. 

 Carter, H.R.. and M.L. Morrison, eds. 1992. Status and con- 

 servation of the marbled murrelet in North America. 

 Proceedings of a 1987 Pacific Seabird Group 

 Symposium. Proceedings of the Western Foundation of 

 Vertebrate Zoology 5. Camanllo. C.\. 134 pp. 

 Caner, H.R., G.J. McChesney, D.L. Jaques, C.S. Strong, 

 M.W. Parker. J.E. Takekawa, D.L. Jory, and D.L. 

 Whitworth. 1992. Breeding populations of seabirds in 

 California. 1989-1991. Vol I, U.S. Fish and Wildlife 

 Service. Dixon. CA. (Unpublished final report.) 

 Carter. H.R.. A.L. Sowls. MS. Rodway. U.W. Wilson. R.W. 

 Lowe, F. Gress. and D.W. Anderson. Status of the dou- 

 ble-crested cormorant on the west coast of North 

 America. Colonial Waterbirds. In press. 

 Ford. R.G.. G.W. Page, and H.R. Carter. 1987. Estimating 

 mortality of seabirds from oil spills. Pages 747-751 in 

 Proceedings of the 1987 Oil Spill Conference. American 

 Petroleum Institute. Washington. DC. 

 Ford. R,G,, D,H, Varoujean, D.R. Warrick, W.A. Williams, 

 D.B, Lewis. C.L. Hewitt, and J.L. Ca.sey. 1991. Seabird 

 mortality resulting from the Neslmx-a oil spill incident 

 winter 1988-89, Ecological Consulting Incorporated, 

 Portland. OR. [Unpublished report.) 

 Forest Ecosystem Management Assessment Team 

 (FEMAT). 1994. Forest ecosystem management: an eco- 

 logical, economic, and social assessment. U.S. 

 Departments of Agriculture and Interior, Washington, 

 DC 

 Gress. F. R.W. Risebrough. D.W. Anderson, L.F. Kiff. and 

 J.R. Jehl. Jr. 1973. Reproductive failures of double-crest- 

 ed cormorants in southern California and Baja 

 California. Wilson Bull. 85:197-208. 

 Henny. C.J.. L.J. Blus. S.P Thompson, and U.W. Wilson. 

 1989, Environmental contaminants, human disturbance 

 and nesting of double-crested cormorants in northwest- 

 em Washington, Colonial Waterbirds 12:198-206, 

 Hodder. J., and M.R. Graybill. 1985. Reproduction and sur- 

 vival of seabirds in Oregon during the 1982-83 El Nifio. 

 Condor 87:535-.54l. 

 Hunt. G.L., R.L. Pitman. M. Naughton. K. Winnett. A. 

 Newman, PR. Kelly, and K.T. Bnggs. 1979. 

 Reproductive ecology and foraging habits of breeding 

 seabirds. Pages I -399 in Summary of marine mammal 

 and seabird surveys of the southern California Bight area 

 1975-1978. Vol. 3— Investigators' reports. Part 3. 

 Seabirds— Book 2. University of California-Santa Cruz. 

 For U.S. Bureau of Land Management. Los Angeles. CA. 

 Contract AA550-CT7-36. )Unpublished report.) 

 Jones and Stokes Associates. 1993. Environmental impact 

 report for the review of Mono Basin water nghts ot the 

 City of Los Angeles. Draft. May. (JS A 90-171.) Prepared 

 for California State Water Resources Control Board, 

 Division of Water Rights. Sacramento. CA. 

 Nettleship. D.N.. G.A. Sanger, and PF Springer, eds, 1984, 

 Marine birds: their feeding ecology and commercial fish- 

 eries relationships. Proceedings of the Pacific Seabird 

 Group Symposium. Canadian Wildlife Service Spec. 

 Publ., Ottawa. Ontario. 220 pp. 

 Page. G.W.. H.R. Carter, and R.G. Ford. 1990. Numbers of 

 seabirds killed or debilitated in the 1986 Ape.x Hoiislon 

 oil spill in central California. Pages 164-174 in S.G. 

 Sealy, ed. Auks at sea. Proceedings of an International 

 Symposium of the Pacific Seabird Group. Studies in 

 Avian Biology 14. 

 Sealy. S.G.. ed. 1990. Auks at sea. Proceedings of an 

 International Symposium of the Pacific Seabird Group. 

 Studies in Avian Biology 14. 180 pp. 



