A couple of boffins from the BTO have just been on 'Look East' blaming the decline in the numbers of Greenfinches and other songbirds on garden bird feeders.
I can see the validity behind the science: dirty feeders and rotting peanuts are certainly likely to be vectors of pathogens (particularly fungi) but with so many species in crisis, it's not, IMHO, the best time to be putting people off feeding wild birds.
Carefully selected foods presented appropriately in clean feeders is vital to make up for the dramatic losses brought about by modern agriculture and the burgeoning cat population of the UK: Linda and I get dozens of House Sparrows, Starlings, Blackbirds and Tits in the garden: species you'd struggle to see at many nature reserves!
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