There are many animals that make a buzzing sound. The gnats, flies, all types of beetles and bees. These really are not thought of as animals, rather they are thought of as insects.
Animals do make sounds but it's not all of the animals that make sounds.
Both bees and mosquitoes make the buzzing noises with their wings. Their wings are moving at such a high rate of speed that it makes the vibrations and buzzing sounds.
animals make the sounds they do is just like human languages.... for example a whistle may mean they are calling for their family. The animals make the sounds they do because they all need to communicate with each other.
Insects can make buzzing sounds by fluttering their wings, or sounds called Stridulation, made by rubbing body parts together (for example, grasshoppers rub their legs against their wings). Often we can't hear the sounds many insects make, unless they are recorded and amplified.
You know its a hummingbird because of the humming of their wings. Otherwise they make a chirping sound, like a normal bird.
If you have buzzing sounds in your ears and head it could be indicative of tinnitus. The most common cause of tinnitus is due to hearing loss as a result of excessive noise.
There are a lot more animals than just 2 that make unusual or loud sounds.
animals make certain sounds because that is how they communicate with each other. for example a hawk, a bear, a lion etc.
There are dozens of parrot species, each of which has a set of sounds that they typically make, plus sounds they learn by mimicking. Some common sounds that parrots make are squawking, screaming, clicking, chirping, growling, buzzing, whistling, and gurgling.
There are a number of insects that could be making a loud buzzing noise at night. Different types of beetles, crickets, and even sometimes frogs make these sounds in Oahu at night.
Thats like saying how do we humans make diffrent sounds if you think about it how do you make diffrent sounds? and thats your answer!
bleet