In the arid Kalahari Desert, where trees are scarce, sociable weaver birds create massive communal…

mutant-distraction:

In the arid Kalahari Desert, where trees are scarce, sociable weaver birds create massive communal nests, often building them on electric poles

These giant structures can house over 100 birds and expand over time, forming true “cities in the sky.”

Built from branches, grass, and cotton, they provide warmth in winter and cool shade in summer.

Other birds and animals also move in, turning these nests into mini ecosystems!