In general, rabbits prefer arid to semi-arid climates. As much of Australia is comprised of these habitat descriptions, it seems an ideal place for the rabbit species. However, rabbits also dwell in more temperate environments. Within these areas, the rabbits have been found to live in hilly areas with underground nests, also known as warrens, as well as in flat, dry areas nesting among shrubs and low ground vegetation (King 1984). This wide variety of nesting styles among the different climates contributes to the difficulty in controlling the population. Similar seasonal breeding trends are found within these different climate areas. The breeding season begins with the first rains in March or April. The young, which are called kittens, emerge from the warrens and grow into adulthood through July, with populations peaking from October to December. Numbers will then fall with the duration of the non-breeding season in the summer with lowest population levels again in March or April (King 1985).