It is a large buzzing fly?

A large buzzing fly is often associated with a few species, such as the horsefly or the blowfly, which are notable for their size and distinctive sound. These flies are typically attracted to warm-blooded animals and can be found in various environments, especially near water sources. Their buzzing sound is produced by rapid wing movement, and while they can be a nuisance, they play important roles in ecosystems, such as pollination and decomposition.