Seabird Abstracts

Population status of the Common Murre in British Columbia, Canada

Hipfner JM (2005) Marine Ornithology 33:67-69

To summarize, Common Murres bred at only two of six historically documented colonies in British Colombia, Canada in 2003 and 2004. Numbers at Triangle Island, the larger of the two active colonies, were about 27% lower in 2003 than in 1989. The lower number may reflect a true population decline, but if so, one of unknown cause and timing. In addition, the distribution of breeding birds around Triangle Island changed between 1989 and 2003: a number of small satellite colonies were abandoned, but more birds bred on the main colony. That redistribution may reflect changes in the raptor population and behavioural dynamics.


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