New data on, appropriately, Darwin’s Finches, in the Galapagos, show definitively that new species can arise in as little as two generations. Closer to home, studies show that this lovely species, the Goldfinch, is evolving longer bills. This is thought to be an adaptation to garden feeders, which they increasingly visit- we have a small charm every day at present. Males already have longer bills than females, enabling them to obtain seeds from Teasels. Conditions: Cold, with sunny intervals. Temperature: Max 6- Min -1C.
Goldfinch
Goldfinch
Goldfinch
Sheffield city nature diary by Penny Philcox 
Lucky you Penny seeing these beautiful birds in your garden…I wish we did!
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We are so lucky, you are right.
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