Abstract

SynopsisAvailable information on the sizes and locations of seabird breeding colonies in the Moray Firth is reviewed. Guillemot is the most abundant species with a population of about 149,000 individuals at thirteen main colonies. The bulk of the populations of each species occur in east Caithness. Comparison of counts made in 1969 with more recent censuses indicate substantial increases in population size in the 1970s for most species. The results of annual counts at detailed study plots in five Caithness colonies between 1980 and 1984 suggest that this trend of increase has ceased for guillemots, razorbills and kittiwakes.

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