Darwin’s finches, which are a classic example of evolution, are dying off due to an infectious parasite that damages their beaks. The damage causes their mating calls to have an unpleasant tune, hindering their ability to reproduce. – WTF Fun Facts
mating call
WTF Fun Fact – White Bellbird Fire Alarm
The White Bellbird, found in the Guianas, Brazil and Venezuela, is known as the world’s loudest bird. Their mating call sounds like a fire alarm and can reach up to 125 decibels. – WTF Fun Facts
Source: https://globalnews.ca/news/6066393/loudest-bird-bellbird-song/