The Zoroastrian Funeral That Needs Vultures To Work

Herodotus, writing in the mid-5th century BCE, described Iranian peoples leaving their dead exposed to be picked clean by birds and dogs. The full architectural form — the dakhma, or Tower of Silence — appears in the historical record by the early 9th century CE. It is a circular open-topped stone tower with three concentric rings on its platform: men on the outer ring, women in the middle, children at the center. Vultures do the rest.

The logic is theological. In Zoroastrian thought, a corpse is nasu — ritually polluting — and must not touch fire or earth, both of which are sacred. Excarnation by carrion birds was the answer that kept the elements clean. The bones, bleached by sun and wind over roughly a year, were eventually collected into a central pit.

Then, in the 1990s, Indian veterinarians began dosing cattle with diclofenac, a cheap anti-inflammatory. Vultures eating the carcasses suffered fatal kidney failure within days. By 2008, the white-rumped vulture population on the subcontinent had fallen by more than 97%. India banned veterinary diclofenac in 2006, but by then the birds were functionally gone from the skies above Mumbai's Doongerwadi towers, where Parsis had used the same site for excarnation since the 17th century.

The community has tried solar concentrators — mirror arrays focused on the platform — to dry the bodies the way the sun and birds once did. They are slower, and they are not vultures. A rite that survived empires, migrations, and a thousand years in exile is now waiting on a bird recovery program.