Scientists Found Two Birds as Loud as Chainsaws. Here’s How They Make So Much Noise.

Researchers measured the calls of 123 bird species in Brazil. Two reached volumes comparable to chainsaws and louder than elephants.

Deep dive

https://www.vice.com/en/article/scientists-found-two-birds-as-loud-as-chainsaws-heres-how-they-make-so-much-noise/