Reddit user u/celerym posted:

“TIL some indigenous people are known to have deciphered bird language and used it to locate predators that birds were warning other birds about”

Here’s how to decode the secret language in birds’ tweets. Each chirp sends a distinct message: a mating call, a demonstration of dominance, or an alarm call about a predator. Other prey benefit from these warning shrieks, taking precautions for protection. Native Americans relied on “bird language” for centuries to learn about whereabouts of people and other animals that humans would not be able to see.