Something I've thought about recently is how <i>loud</i> forests should be. Daniel Mason names this loss explicitly in the wonderful <i>North Woods</i>, 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 <i>Eve</i> 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 <i>loud</i>."