surrounding rocks, that to an unpractised eye the bird is with difficulty distinguishable from the ground on which it sits. We have more than once had convincing proof of the efficacy of this mode of concealment, in the shape of a sharp bite on the leg, inflicted by the beak of a brooding female, of whose presence we were quite unaware before--at the last moment--she flew away. Those females who happen to have taken up their abode in the vicinity of men will allow themselves to be taken up from the nest while their eggs are examined, after which they immediately settle down again to brood, without showing the slightest desire to escape. Frequently we have sat close to their nests for hours together, have stroked their feathers, put our hands between their bodies and their eggs to note the temperature, and yet few of them have stirred from the spot. Some of them would occasionally bite our fingers as if in play, but the majority testified neither timidity nor annoyance. Some we purposely took to a little distance from their nesting-place and placed upon the ground, but they would immediately waddle back to their domicile, arrange the down around the eggs, and quietly resume their position, as if nothing had happened. When left quite to themselves the brooding females quit their nests regularly every morning, taking care, however, to cover their eggs warmly with down, so that they may not be chilled during their absence; having done this, away they fly out to sea, and dive assiduously for half an hour in search of food, and in this short period manage to fill their crops almost to bursting with various kinds of shell-fish, after which they return at once to their charge. The males are much more timid than the females, even when with them at the breeding season or whilst keeping watch over their nests. Should any one approach, they immediately get into a terrible flurry, toss their heads, call loudly to their wives, and after blustering for a little time, fly off to sea, whence they anxiously watch the proceedings of the disturber of their quietude. After the lapse of twenty-five or twenty-six days, the young ones break their shells and make their appearance; they are beautiful little creatures, clad in rich parti-coloured down. From the first moment of their birth they are well able both to swim and to dive; they also walk with considerable facility, even better than their mother, who takes them, before their downy coat has had time to dry, down to the sea. Should the breeding-place be far from the sea, and the departure of the little flock be unusually delayed, the keepers frequently come to their assistance, and, putting the entire brood into a basket, walk with them to the shore, followed by the waddling parents, who seem quite satisfied with the arrangement. [Illustration: EIDER DUCKS AT HOME.]