re: Downy vs. Hairy woodpecker:

I have a problem with size, my clue is: the beak of a Downy is the size
of pincers, the bill of a Hairy is like a chisel.

(don't remember whom I should give credit for that one)

Reto Riesen
Dept. Chem., UBC
Vancouver, B.C.
riesenr at chem.ubc.ca