The big mover up is the Goldfinch which has moved in to the top 10 of most commonly reported birds. In 1995 it was seen in 12.2% of gardens and now is seen in 57.9% of gardens. It replaces the Greenfinch which is in decline.
According to Dr Tim Harrison:
Greenfinches are being affected by a disease called trichomonosis.
During 2011, their numbers were down by a tenth compared with the average over the last two years, and this is is despite a fantastic breeding season that year.
Goldfinches have probably benefited by people putting a greater variety of food out.
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