Pikmin speak with strange, squeaking noises. Through the day, it makes squeaking noises while flying, and harsh squawks when mobbing. When she submits, he mounts her from behind, making high-pitched squeaking noises during mating. They have six signals&colon; squeaking or whistling, rasping, barking, whining, screaming, and nonvocal sounds. And, of course, once you excite the chassis the door panels start rattling and squeaking. They are interrupted when they hear a squeaking noise. The babies had rattles in their tails and came with a squeaking baby bottle. They may also cause an audible, high pitched squeaking noise with activity. The voice is usually described as a shrill squeaking often with the jackdaw-like overtones. Other sounds produced by narwhals include trumpeting and squeaking door sounds. During this time, the female indicates her readiness to mate by squeaking loudly. Squeaking sounds due to fingers sliding along the strings are also decreased significantly. Blue-headed parrots are noisy birds and make light, high-pitched squeaking "sweenk" calls. Its vocalizations range from quiet peeps to rapid short squeaking sounds. It produces a high-pitched squeaking sound when provoked.