The weasel probably lives from eight to twelve years. It is easily caught in a trap, with bait of an egg, a small bird, or a mouse. No other animal is so fitly endowed for hunting mice. [Illustration: WEASEL. 2/5 Life-size. FROM COL. F. NUSSBAUMER & SON. A. W. MUMFORD, PUBLISHER, CHICAGO. COPYRIGHT 1900, BY NATURE STUDY PUB. CO., CHICAGO.] In the attempt to check the rabbit pest in New Zealand, recourse has been had to the importation of natural enemies, such as ferrets, stoats, and weasels. In the Wairarapa district some 600 ferrets, 300 stoats and weasels, and 300 cats had been turned out previous to 1887. Between January, 1887, and June, 1888, contracts were made by the government for nearly 22,000 ferrets, and several thousand had previously been liberated on crown and private lands. Large numbers of stoats and weasels have also been liberated during the last fifteen years. This host of predatory animals speedily brought about a decrease in the number of rabbits, but their work was not confined to rabbits, and soon game birds and other species were found to be diminishing. The stoat and the weasel are much more bloodthirsty than the ferret, and the widespread destruction is attributed to them rather than to the latter animal. Now that some of the native birds are threatened with extermination, it has been suggested to set aside an island along the New Zealand coast, where the more interesting indigenous species can be kept safe from their enemies and saved from complete extinction. BIRDS AND THE WEATHER. Birds are dependent on the elements as well as is man, and in the want of materials and the requirements in nest-building the birds are comparable to the lords of creation. It is not a rare thing for a pair of robins to be badly handicapped in nesting-time by a lack of rain, for in May, and even in the showery month of April, there is occasionally a dry run of weather lasting for more than a week. I have seen a pair of robins start a nest, and the dry weather would come on and stop operations, and the disconsolate pair would wait for the rain so that they could make mortar for their nest. Robins must have mud to use in the construction of their little home, and all the dry materials will avail them nothing unless there is a good stock of mortar on hand to cement the grass, rags, and other materials together. On one occasion we supplied a pair of redbreasts with plenty of mortar by letting the hydrant run on the ground. The delighted robins immediately accepted the situation and gathered materials for the partially finished home, which was quickly completed and the four beautiful eggs deposited. We broke the law by letting the water run, but then we can excuse ourselves in behalf of the faithful birds by saying that "necessity knows no law."