Salt Lake City, UT – Just about every Utahn has heard of the Mormon cricket and its voracious appetite for crops. But less familiar is the Rocky Mountain locust. These winged grasshopper-like creatures descended upon the west in numbers much greater than Mormon crickets, and with far more devastation. Then, at the close of the 19th century, they became extinct. Jeff Rice reports for the Utah Soundscapes series about a vanished species and its sound.