Fool=a variant of "fowl". Modern Danish, and Norwegian in the deep south(Agder/bible belt) pronounces "fugl" much like English "fool". "Foul" is a homonym of separate etymology. It's foul to call fowls fools. The highest brain/bodymass ratio among vertebrates is to be found in hummingbirds.
> Since Lars made his comment... > Yesterday at Luckiamute North in Polk County, I had my first OCWA of the > spring foraging in a red currant. > Today at Finley NWR in Benton, I had at least a dozen, most singing high > in oaks scattered along Mill Hill and Beaver/Cattail Marsh trails. April 1, > so seasonal trails are now open at Finley! > Nancy Stotz >