In Brazil, tame Musk Ducks are everywhere to be met with; indeed, at the period of the visit of the Prince von Wied there seemed to be no others kept in a state of domestication. In Germany, also, breeders have endeavoured to rear them for the table, and speak favourably of the result of their efforts. In their good opinion of these birds we cannot participate. To say nothing of their being unable to endure the cold of our winter so well as other more common species, we consider them to be positively dangerous; they not only attack and do serious damage to other Ducks, but they have been known to set upon children and injure them very seriously. Should any of their companions fall under their displeasure, they follow them unremittingly by land or water, pluck their feathers off and bite them savagely; indeed, they not unfrequently kill them outright by swimming after them and holding them so long under water that they are drowned. * * * * * The DIVING DUCKS (_Fuligulæ_) were formerly considered as belonging to the same race as the preceding, from which they are now properly separated, seeing that they have no more in common with them than Geese or Swans. The Diving Ducks are at once recognisable by their short, broad, plump body, by their short thick neck, their large head, and moderate-sized beak; the latter is broad, furnished with very short teeth, and occasionally somewhat enlarged at the base. The tarsi are short, feathered quite to the heel, and compressed laterally. The anterior toes are large, long, and strongly webbed. The wings are short and vaulted, the two first quills being the longest. The tail is short, but broad, consisting of from fourteen to eighteen close-set feathers; the general plumage is thick and close, differing in colour according to sex and age, and on the head is generally prolonged into a tuft or crest, which is rendered more conspicuous by the brightness of its colours. These Ducks, in correspondence with their power of diving, always prefer open deep water to such as is either shallow or overgrown with plants. The greater number of them live upon the sea, and only visit fresh water during the breeding season. There are, however, some that must be considered as fresh-water birds, seeing that they spend the greater portion of their lives upon ponds, lakes, or rivers. In consequence of the backward position of their legs, they are obliged, when they stand or walk, to keep themselves very upright; indeed, their gait can scarcely be called a waddle, inasmuch as it is with difficulty that they stagger along. Their flight is, perhaps, better than that of most other Ducks, and when once on the wing they move pretty rapidly through the air. In the water they are quite in their proper element; their broad powerful body is so deeply immersed that only a small portion of the top of the back is visible, and their tail touches the surface of the water.