The chicken is a fowl. The definition of a fowl is a bird used for food. A hen is an example of fowl. Chicken is an example of fowl. fowl. the duck, goose, turkey, etc. a full-grown chicken, as distinguished from a springer, etc. fowl.
Data collection and search-and-rescue missions are faster and more efficient with a team of drones to pool data and provide redundancy in case some machines fail. But the use of more vehicles also adds complexity. Drones working together have to be able to communicate with one another and make collective decisions.
These drones are basically of the size of small aircrafts. They are mostly found in military facilities. The main use of these drones is in the field of combat where sending normal jets with men controlling is a matter of high risks. These can be used for surveillance purposes of active areas.