Field guides mention but don't treat as useful the size difference between the visually very similar Hairy Woodpecker and the Downy Woodpecker, on the completely sensible grounds that judging size accurately for something up a tree is difficult.
Fortunately for me, I have great confidence that the suet feeder does not change size depending on what bird lands on it.
So I'm pretty sure this is a female Hairy Woodpecker.
24 November 2008
The utility of scale references
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