"' Linnaeus. Mallard.—This is the predominant duck of the region, but it has only slight numerical superiority over the . Mallards were omnipresentin the waters of the entire territory, often varying only slightly in relative abundance from one lake to another. In only a few lakes were its numbers surpassed by any other species of ducks. In relation to all other ducks, its ratio varied from as low as 11 per cent to as high as 42, the average for 32 lakes being 26.3 per cent."