Where have all the greenfinches gone?

When did you last see a greenfinch in Hastings? Probably a while ago – sightings are getting rarer as the population is in serious decline. David Campbell, bird recorder for the Sussex Ornithological Society, said, “Ten years ago we saw greenfinches much more often, but now the numbers have declined by 65% in the south-east.” As climate change causes the Earth to heat up bird diseases will occur more frequently. This article describes how a parasitic bird disease, Trichomonosis and a virus, bird flu, has affected bird species. Richard Price reports.