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User / Chris Bainbridge1 / Who blinks first
Chris Bainbridge / 4,703 items
Male Hawfinch, taken last year in Suffolk.

In the spring and summer the Hawfinch’s bill is grey-blue and in the winter it is grey-yellow. Not sure why but it might have something to do with diet - in winter predominantly seeds and in summer insects, especially when feeding young. Perhaps the yellow version is stronger to crack those seeds?
Popularity
  • Views: 901
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Dates
  • Taken: Mar 26, 2017
  • Uploaded: Feb 11, 2018
  • Updated: Feb 24, 2018