Washington 54 



Historical background on breeding colonies in Washington, 1905-1978 54 



Current population size and distribution of breeding colonies in Washington 56 



Population trends in southern Washington, 1979-1995 59 



Population trends in northern Washington, 1979-1995 60 



British Columbia 61 



Historical background on breeding colonies in British Columbia, 1900-1979 61 



Current population size and distribution of breeding colonies in British Columbia 65 



Population trends in British Columbia 65 



Overall population assessment 66 



Current population size and distribution of breeding colonies 66 



Recent and historical population trends 68 



Acknowledgments 70 



Literature cited 71 



Additional references 81 



Unpublished data and personal communications 84 



Appendix A. Techniques for aerial and other photographic surveys of common murre (Uria aalge 



californica) colonies in California, Oregon, Washington, and British Columbia 87 



Appendix B. Histories of common murre (Uria aalge californica) colonies in California, 1800-1978 93 



Appendix C. Population data for common murre (Uria aalge californica) colonies in California, 



1979-1986 109 



Appendix D. Population data for common murre (Uria aalge californica) colonies in California, 



1987-1995 113 



Appendix E. Population data for common murre (Uria aalge californica) colonies in Oregon, 



1987-1995 117 



Appendix F. Population data for common murre (Uria aalge californica) colonies in Washington, 



1979-1989 119 



Appendix G. Population data for common murre (Uria aalge californica) colonies in Washington, 



1990-1995 121 



Appendix H. Summary of regression analyses 123 



Appendix I. Photographs of selected breeding colonies of common murres in California, Oregon, 



Washington, and British Columbia 129 



Tables 



Number Page 



1 . 1 Reproductive success of first and replacement clutches of the common murre on the South Farallon 

 Islands, California, 1972-1983 8 



1 .2 Reproductive success of the common murre in the Pacific and Atlantic Oceans 1 1 



1 .3 Summary of reproductive and other characteristics of the common murre in California, Oregon, 

 Washington, and British Columbia 12 



1 .4 Seasonal projected total number of common murres in the protected marine waters of Washington 



and southern British Columbia during 1978-1979 19 



2. 1 Average and maximum sizes for nine breeding colonies of common murres in central California, 

 1979-1995 41 



2.2 Average and maximum sizes for eight breeding colonies of common murres in northern California, 

 1979-1995 41 



2.3 Summary of museum egg specimens of common murres in Oregon 5 1 



2.4 Numbers of common murre counted at seven colonies formed in Oregon between 1989 and 1995 52 



2.5 Average and maximum sizes for 15 selected breeding colonies of common murres in Oregon, 

 1988-1995 52 



2.6 Numbers of common murres counted during replicate aerial surveys at 1 5 selected colonies in 

 Oregon in 1995 53 



iv 



