BIOLOGY AND CONSERVATION OF THE COMMON MURRE 1 1 1 



Table, (continued) 



correction factor to the WEI total (14,030) to derive a WEI total of 1 6,683, before adding other subcolonies without a correction 

 factor ( 1 5,055) to derive a colony or colony complex total of 3 1 ,738. For 1 986, Takekawa et al. ( 1 990) did not apply a g correction 

 factor. We have used the new combined count reported in Sydeman et al. (1997). 



h Source is Ainley and Boekelheide (1990). 



' Source is Sydeman et al. (1997). 



' For 1986, Takekawa et al. (1990) could not determine separate counts for these two colonies but provided a combined count of 

 1,881 murres. McChesney et al . ( 1 999) reexamined these aerial photographs, excluded some counted photographs from another 

 colony that had been misidentified, and determined incomplete total counts for each colony as noted. 



k Source is McChesney et al. (1999). 



1 Source is Lewis et al. ( 1 988). 



Extended table legend: Colonies are ordered from north to south. Colony names, not italicized, indicate colonies attended 

 regularly and where breeding is confirmed. Underlined and italicized colony names indicate long-inactive colonies and rocks 

 attended without confirmed breeding, respectively. Numbers without brackets refer to total murre counts from aerial photographs. 

 Underlined counts were incomplete. Numbers with brackets ([ ]) indicate murres attending colonies but breeding not suspected. 

 Braces ({ )) indicate either combined counts from aerial and ground-boat surveys, ground surveys, or boat surveys. Data 

 considered to be best for trend analyses in this study are indicated in bold font, based on several criteria: ( 1 ) Aerial photograph 

 counts usually provided higher and better colony numbers than boat and ground counts, except for small areas not photographed. 

 (2) Surveys during the main part of the breeding season (late May to mid-July) were prioritized over earlier or later surveys. (3) 

 Archived raw counts were preferred over back-calculated raw counts. (4) Otherwise less reliable surveys were not used. Italicized 

 counts were used to obtain population sums and colony complex totals but were not considered to be comparable to other data for 

 the colony. Codes: ND, no data obtained; PNC, photographs taken but not counted. 



