excellent opportunity to study and compare all four taxa. With the arrival of this 'snowball' we again have both subspecies of Common Redpoll and Hoary Redpoll, that is:
- "Southern" Common Redpoll (Acanthis flammea flammea)
- "Greater" Common Redpoll (Acanthis flammea rostrata)
- "Hornemann's" Hoary Redpoll (Acanthis hornemanni hornemanni)
- "Southern" Hoary Redpoll (Acanthis hornemanni exilipes)
This morning, the male Hornemann's Hoary Redpoll was back, this time among other redpolls, Purple Finches, Evening and Pine Grosbeaks. Although I wasn't able to get any great photos through our kitchen window, I snapped a couple that show the larger size of the Hornemann's Hoary Redpoll - the larger size is critical to distinguishing this subspecies from the smaller exilipes Hoary Redpoll.
The three birds in the foreground, from left to right, are (1) "Hornemann's" Hoary Redpoll (m), (2) Purple Finch (f) and (3) "Greater" Common Redpoll (f?).
[click on images to enlarge]
Another view of the Hornemann's Hoary Redpoll.
Northern Cardinal at the northern limit of its breeding range in Ontario.