(Zool.) A river duck (Spatula clypeata), native of Europe and America. It has a large bill, broadest towards the tip. The male is handsomely variegated with green, blue, brown, black, and white on the body; the head and neck are dark green. Called also broadbill, spoonbill, shovelbill, and maiden duck. The Australian shoveler, or shovel-nosed duck (Spatula rhynchotis), is a similar species.
... with a shovel load of about 21 pounds. For instance, that this man would shovel a larger tonnage per day with a 21-pound load than with a 24-pound load or than with an 18-pound load on his shovel. It is, of course, evident that no shoveler can always take a load of exactly 21 pounds on his shovel, but nevertheless, although his load may vary 3 or 4 pounds one way or the other, either below or above the 21 pounds, he will do his biggest day's work when his average for the day is about ... — The Principles of Scientific Management • Frederick Winslow Taylor