The Sociable Weaver Bird (Philetairus socius) is a friendly little fellow as the name would suggest. He lives in the long nests that hang from trees and telegraph poles the length and breadth of the Kgalagadi. The nests are the largest built by any bird and some can house over a hundred pairs. The outer chambers provide cool shade in the day and there is warmth at the centre at night. A pair can produce four broods in a breeding cycle. One has been recorded as producing nine broods in a cycle in response to predatory attacks. By unsociable weavers, maybe?