here is a bit of advice from the geniuses at birdwatching.com:
"Many beginning birders have been fooled by the look-alike downy and hairy woodpeckers. The hairy is bigger, but it can be hard to judge size when you see one alone. How to distinguish them? The most important field mark is the bill."
always good to remember...
so here is an animatic for my 30 sec. short film: