Tuesday, 30 October 2012
Seabird Summary 2012
Herring Gulls – have done OK this year as well, 266 nests counted which is above the 10-year mean, but below the 28-year mean of 354 AON.
Kittiwake – continue to have a difficult time of it. This year’s count of 4,314 nests is the lowest on record, well below the 10-year mean of 5,653 AON, and less than half the 28-year mean of 10,631 AON. However, to put it in perspective, although the number of kittiwakes has declined by 78% since the highest count in 1989, the counts since 2009 are now in the region of the counts from the 1950s. As far as breeding success goes, not as good as last year (but like the shags, last year was exceptionally good), with only 0.48 young fledged per nest. However, this is about the same as the 10-year mean, and only slightly below the 26-year mean.
Puffins – sadly for many, the puffin breeding numbers went down again this year from 7 birds ashore during the height of the breeding season (so probably with chicks in burrows) last year, to just 4 this year.