Supplementary info on Purple Finch Female-plumaged Eastern Purple Finch (left) and Pacific Purple Finch (right) showing differences in back and rump pattern. Specimen use granted by Museum of Comparative Zoology, Harvard University ©President and Fellows of Harvard College. Adult male Eastern Purple Finch (two on left) and Pacific Purple Finch (two on right) showing differences in wing covert pattern. Specimen use granted by Museum of Comparative Zoology, Harvard University ©President and Fellows of Harvard College. From left to right: two Eastern Purple Finches, two Pacific Purple Finches, two Cassin's Finches. Specimen use granted by Museum of Comparative Zoology, Harvard University ©President and Fellows of Harvard College.
Paul Hurtado February 2, 2017 at 3:57 PM Did you by chance get a wing covert comparison between the six birds in that last photo (i.e., between Purple and Cassin’s)? That would be great to add to this post! 🙂 Reply
David Sibley February 3, 2017 at 12:47 PM Hi Paul, Surprisingly no, I checked my photos and it looks like I did not take a side view of those specimens. I’ll try to add that some time. Reply
Did you by chance get a wing covert comparison between the six birds in that last photo (i.e., between Purple and Cassin’s)? That would be great to add to this post! 🙂
Hi Paul, Surprisingly no, I checked my photos and it looks like I did not take a side view of those specimens. I’ll try to add that some time.