No these aren’t haystacks stuck in a phone pole. Visit the Kalahari Desert in the south of Africa and you’re bound to run into a peculiar animal called the Sociable Weaver Bird. The birds are called “social” not just because they live in organized colonies, but because they build massive homes out of sticks, grass and cotton that are home to several other kindsbirds. That’s right, the nests are so large that birds of other species are welcome to setup shop, not the least of which is the South African pygmy falcon which lives exclusively inside the social weaver’s nests that often accomodate over 100 birds at at time