General breeding bird index

  • Fewer breeding birds in agricultural areas than in 2007

    The number of breeding birds in agricultural areas fluctuated between 2007-2012. After a sharp decrease in 2013-2015, their numbers seem to be stabilizing at a new and lower level. Between 2011 (highest value) and 2019 (lowest value), there is a decrease of 19% in the number of breeding birds in agricultural areas.

  • Number of forest birds also declining since 2015, number lower than in 2007

    Forest birds have fluctuated in numbers between 2007-2015. The highest numbers were registered in 2012, followed by a decline. The most pronounced change is a decrease of 7.8% in the number of breeding birds in forest areas between 2012 and 2018.

  • Number of breeding birds in diverse habitats in decline to 2007 levels after increasing until 2013

    Among the breeding birds that breed in diverse habitats, the index was highest between 2008-2013. There has since been a systematic decline to approximately the level of 2007. Between 2007 and 2012, the change in the index was most pronounced (+12.5%). The number of breeding birds in various habitats in 2019 was 0.7% higher than in 2007.

Sources

Research Institute for Nature and Forest (INBO): General breeding bird index

Publication date

5 February 2020

Next update

February 2021

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