BIOLOGY AND CONSERVATION OF THE COMMON MURRE 115 



Table, (continued) 



k For 1989. Carter et al. (1992) reported an incomplete total of 625 murres, by combining highest aerial and ground counts. 

 McChesney et al. (1999) reexamined aerial photographs, omitted ground counts and substituted aerial counts, found and counted 

 a photograph which covered a missing section of the colony, and determined a complete total count of 728 murres. For 1 994. 

 Carter et al. ( 1 9%) reported a total of 1 .435 murres. McChesney et al. ( 1 999) reexamined aerial photographs, found and counted 

 an omitted photograph with four additional birds, and determined a total count of 1 .439 murres. 

 1 Sources are Ingram ( 1992); Ingram and Carter ( 1 997). 



Extended table legend: Colonies are ordered from north to south. Nonitalicized colonies were attended regularly and 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. 



