As I grew up, I realized that the sounds, especially the ONE, were katydids. There are 255 species in North America, and 20 in our Midwest. These insects get their name from the song they sing.
The insect died, but they saved it in case the ... “However, I have not seen any in the wild.” “Katydids are close relatives to grasshoppers, from the family Tettigoniidae.