My cat keeps changing foods?

Some cats are more finicky than others. Most cats will after some time get tired of a certain flavor if that is the only one you give them and we as humans are the ones who make them finicky. It's not recommended that you switch the brand of food without introducing it slowly with the old food by adding the new and decreasing the old this way yu prevent any digestive upsets to your cat. In the 61+ years cats have owned me one day they like the "Chicken Delight" and 2 days later they will look at me and bury it, enough to say "What are you thinking, I certainly do not want this today". See how cleaver they are and they know that we are their servants. Some cats are just more finicky than others since the know in no uncertain terms they ARE SPECIAL.