The Russian invasion of Ukraine has made the South American country’s deposits of bird poo more valuable
As countries around the world wrestle with shortages of imported fertiliser as a result of the Russian invasion of Ukraine, Peru has turned to a tried and tested alternative: bird poo.
In the 19th century, fortunes were made and lost on guano, the potent excrement of fish-eating seabirds which was harvested by enslaved people from Africa and indentured Indigenous and Chinese labourers.
