Something I've thought about recently is how loud forests should be. Daniel Mason names this loss explicitly in the wonderful North Woods, namely that "[b]etween 1970 and 2019 alone, nearly a third of all birds had disappeared from North America. Once, the forest would have been deafening." Likewise, Cat Bohannon's stellar Eve notes that "[w]hen you first visit a tropical rain forest, the dominant emotion is usually surprise—not over the beauty of the place, nor over how hot it is. The biggest shock is that it's bloody loud."
Have a look at "Burden of dreams", a doc about Werner Herzog moving a boat over a mountain (with a team, to film "Fitzcaraldo") in the amazon. "The birds don't sing, they screech in pain"