One round-ish object splitting into 4 in broad daylight.I heard a plane with a propeller and looked up and there was a round-ish silver object near it in my field of view but much higher up. I focused on the object, thinking it might be a balloon and watched it for about 5-6 minutes. It was flying or drifting toward the Southwest. The object started jerking around and moving sporadically which made me watch it even more closely. I then saw a plane in my peripheral vision flying almost right at the object from the East. I looked at the plane and when I looked back the 'UFO' split into 4 parts and took on a different color, like a yellow-ish color. Then the 4 parts just flew around with each other, sometimes it looked like one was leading the others and they were flying in formation or performing. They were heading North and eventually got so far away that I lost track.