The guineas act as a watchdog in case someone tries to disturb them. But at the same time the noise that guinea fowl make can get on your nerves too. Guineas have a habit of chattering very loudly most of the time and after a while you may run out of patience. And if you don't run out of patience your next door neighbors may certainly run out of their patience. Another great trait of guinea fowl is their ability to eat bugs.
Guinea fowl have to be one of the best bug eaters in the whole entire world.
In my opinion they are. A flock of guineas will spend the entire day ranging all over the fields on a farm looking for bugs to devour. In fact my flock of guinea fowl have learned how to follow the tractor and haybine when I'm cutting hay. The reason for them doing this is very simple. In the summer months Guinea fowl require very little feed if allowed to range loose because of their bug eating abilities.