They form their nests with twigs and sticks to the height of four feet, the circumference being fifteen to twenty.

The sticks are all lengths up to three feet, and up to an inch in diameter.

Inside are chambers and galleries, while in the ground underneath are tunnels, which are carried to some distance from their citadel.

They occur in many parts of Australia, and are occasionally met with on plains where few trees can be found.

As a general rule, they frequent the country inhabited by the black oak (casuarina).