Bird subspecies

Redpoll investigation widens to include “Greater”

Maybe we are just more aware and looking harder for “Greater” Common Redpolls (Carduelis flammea rostrata) this winter in Massachusetts, or maybe it’s really an exceptional winter, but there is no doubt that they have come south in significant numbers. I have seen them on a couple of visits to Dan Berard’s feeders in Millbury, …

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Redpoll subspecies

If identifying Hoary Redpoll is not enough of a challenge for you, maybe you’d like to look for subspecies of Hoary and Common Redpolls? First, check out this map from the Canadian Atlas of Bird Banding. This shows selected western band recoveries of Common Redpolls, and the obvious suggestion is that some of the Common …

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