As a result, goldfinch numbers are up by 78% in the past year compared to the average in the past decade.
Dr Tim Harrison of the BTO said: ‘In the summer, there was a particularly pronounced increase in goldfinches’ occurrence in gardens.
‘This suggests that they had a productive breeding season and that juvenile goldfinches moved into gardens for an easy meal.’
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The population increase is welcome news, as goldfinches have been declining due to the spread of trichomonosis disease.
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