The Cockatiels strangest habit is perching lengthwise along a stout limb of a dead tree. This habit is baffling to all who study Cockatiels. Cockatiels eat a variety of foods. They mainly eat seeds, fruits, berries, plants, and insects. They are known to raid crops and always forage on the ground, especially for seeds.
Breeding is variable and dependent on rain.
The Cockatiel breeding season usually last from August to December, although breeding can occur anytime of the year after rainfall. Nests are usually found in hollow limbs or tree holes, preferably in large hollow eucalyptus near water. Decayed wood dust lines the inside and bottom of the nest hole. A Cockatiel lays from four to seven white rounded eggs. Egg laying occurs every other day.