Guineas like other poultry can be kept with household pets as long as boundaries are maintained and standards set.
Yes if you dog is well trained. Other wise it may end up chasing the guinea fowl and causing mayhem. They are more difficult to catch but I have seen a dog run down a guinea before.
I have a very well behaved Spaniel, and my guinea fowl just surround him and honk indignantly at him for a few minutes and then move off.
My cat will never go anywhere near the guinea fowl and an average domestic moggy does not stand a chance against guinea fowl.
Guineas and other poultry:Guinea fowl are turbulent and restless, continually moving from place to place, and domineering over the whole poultry-yard, boldly attacking even the fiercest turkey cock, and keeping all in alarm by its petulant pugnacity. They can be very disruptive but if free range is generally minimal.
The males, although without spurs, can inflict serious injury on other poultry with their short, hard beaks.
The Guinea-fowls make very little use of their wings, and if forced to take to flight, fly a short distance and alight in trees or on rooftops.
Guinea-Fowls,and trust to their rapid mode of running, and their dexterity in threading the mazes of brushwood and dense herbage, for security.