Scottish Natural Heritage (SNH) has released the latest figures tracking the abundance of Scotland’s terrestrial breeding birds between 1994 and 2012. These new figures highlight that over the long term (1994-2012) the abundance of terrestrial breeding birds increased by 12%. Farmland and woodland birds increased by 10% and 56% respectively; upland birds decreased by 18%.
Between 2011 and 2012, over the short-term, the unsmoothed all-species and woodland indices increased by 4% and 12% respectively. The reasons for changes are unknown although some of the increases may be due to the improved weather conditions during the 2011 breeding season, allowing recovery of populations of birds that had declined during the harsh winters of 2009 and 2010. Upland and farmland terrestrial breeding bird indices showed no significant change over this period.
These figures represent a useful addition to our understanding of the trends in bird populations and highlight different processes taking place in different broad habitat types.
To access the latest figures see: http://www.snh.gov.uk/publications-data-and-research/official-statistics/official-stats/terrestrial-breeding-birds/