Thursday, June 17, 2010

Winter effects begin to show

Jan-March 2010 Garden Birdwatch data has revealed that the recent winter has significantly affected some of our smaller garden birds. Using appearances in gardens as a year on year indicator Goldcrests were absent from 48% of gardens where they have been present previously. In some areas of the country, see map, in real terms this equates to a 60% loss in bird numbers.
For wren they were absent in 22% of gardens and treecreeper in 15% fewer gardens.
Trends such as these will be closely monitored to ensure that the declines reported are indeed weather related and do not hide some other factor responsible for the decrease.

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