Apn20_indicateur Graphique _inventaire De L'avifaune

SD Indicator 20: Bird populations

http://www.sustainable-development.gov.uk/progress/national/20.htm

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20. Bird populations* Bird population indices (a) farmland birds* and (b) woodland birds* and (c) coastal birds*, 1970 to 2005

Bird populations: wintering wetland birds Bird population indices: wintering wetland birds, 1970-1 to 2004-5

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SD Indicator 20: Bird populations

http://www.sustainable-development.gov.uk/progress/national/20.htm

Farmland birds since:

1990

1999

Woodland birds since:

1990

1999

Coastal birds since:

1990

1999

Wintering wetland birds since:

1990

1999

Farmland bird populations fell by 42 per cent between 1970 and 1993, but remained fairly stable thereafter. Woodland bird populations in 2005 were about 20 per cent lower than the peak of the early 1970s but remained fairly stable from 1991. The UK's breeding coastal bird populations are of international importance. Populations increased between 1970 and 1987 by 37 per cent and have remained stable since then. The UK is internationally important for wintering wetland birds. Within England, between 1970-1 and 1996-7, wading bird populations increased by 75 per cent and waterfowl by 122 per cent. The overall wetland birds index increased by 100 per cent. Although the index fell by 12 per cent between1996-7 and 2004-5, it was 12 per cent higher than in 1990. NEXT INDICATOR | PREVIOUS INDICATOR

Updated: 27 July 2007

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