While visiting friends on Brigham Hill in Essex yesterday, I watched a
flock of about 2 dozen Redpolls visit their feeders. Having yet to see
any at our feeders in Charlotte, I felt quite envious. What I have seen
twice, however, is an orange male House Finch. I have no idea what he is
eating, or where he is eating it, to account for the different coloration.
Does anyone know if this would have been the result of his summer diet?