Cats sometimes make excited chirping or chattering noises when observing or stalking prey. Goble criticized the ambient audio for including "annoying, perpetually chirping birds and crickets". Crickets were everywhere, often ruining shots by jumping on actors' shoulders or chirping loudly. They call mainly in flight with a rolling chirping whistling "teerp". Frankenturrets can not speak and can only produce chirping noises. They protect their territories by making chirping noises and signs of aggressiveness. Sound effects could change over time from the sounds of a stream to birds chirping. She also starts recording all the sounds around her such as birds chirping, etc. Coatis communicate their intentions or moods with chirping, snorting, or grunting sounds. The silence of Similipal is occasionally broken by the chirping of the birds. Most house sparrow vocalisations are variations on its short and incessant chirping call. The name is a reference to the chirping sound made by birds; see bird vocalization. The resulting album, "The "Chirping" Crickets", was released on November 27, 1957. Juul uses a chirping whisper as vocals. He descends, zigzagging and banking while singing a liquid, chirping song.