NO, IT'S not a giant haystack - it's an example of one of the largest structures constructed by birds.
Sociable weavers (Philetairus socius) build huge communal nests - multistorey apartment complexes - from sticks and grass. The structures last for decades, sometimes over 100 years. Multiple families live together and even help raise each other's young; you could call them socialist weavers, though that might bring to mind a collective of 19th-century Lancashire textile workers.
Food is not super-abundant in the desert, so the birds, pictured below, delay breeding until they are 2 years old. It's one of the reasons that it makes evolutionary sense to live communally. In the past the birds had to nest in trees, something else not commonly available in the desert. Telephone poles have allowed the weavers to expand their range.