The most notable instances Of the rapid spread oft his animal, and the damage occasioned thereby, are to be found in Australia and New Zealand, where wild rabbits were turned out somewhere about the middle of the nineteenth century. In a short time they multiplied to such an extent as to become veritable pests, eating and spoiling the sheep-feed, and thereby seriously injuring the sheep-farmers. Many expedients have been tried to keep down their numbers. Traps, poison, and the virus of fowl-cholera, have been tried, but these remedies together have done little to mitigate the scourge. New South Wales alone spends about £100,000 a year in endeavouring to cope with the rabbit plague. The turning-out of weasels and stoats has been suggested, but the remedy might be worse than the disease. Local varieties of the rabbit occur in the Falkland Islands and in Jamaica. In Porto Santo, one of the Madeiras, is a, dwarf-race, the limb-bones of which are little more than half the size of those of an English wild rabbit.
Wild rabbits are social animals, and on light sandy soils their burrows are very numerous, and a tract of ground where such burrows exist is called a warren. They feed on grass, herbs, green crops, and the tender bark of young trees, and, where they abound, inflict considerable loss on farmers and market-gardeners. In some cases rabbit-farming seems to have been profitably carried on. The fur is used for hat-making, and the flesh is valued for food. Besides the large quantities sent from the country to London, it is estimated that considerably over 100 tons a week are shipped to England from Ostend during the winter. These last are tame rabbits bred in hutches by the Belgian peasantry. It would seem as if this cottage industry might be advantageously introduced at home.
Domesticated rabbits have run into a great number of varieties, amongst which is an albino race, with red eyes, as firmly established as is its natural enemy, the ferret. Tame rabbits are easily kept, and breed freely in confinement. Cleanliness, dry hutches, and a mixture of hard with green food, are the principal points to be borne in mind in order to ensure success. Opinions differ as to giving water to tame rabbits; the need for it depends greatly on the nature of the food, but does, after bearing young, should have a supply.