there were 4 of them and when the last one connected with the third one they looked just like the leader .I went to my father-inlaws to cut down a tree. I put a rope in the tree to help pull the tree over then I cut the tree half way through, I then went over to the rope to see if I could pull the tree over, when I looked up there they were 4 round objects going south west at a very slow speed slower then any plane and there was no sound.AS I watched them go over I noticed that the one in front looked different than the other three. Then the very last one moved a little faster and connected or docked with the third one. and together they looked like the leader. the direction they were going would have taken them over or close to the rockford air port at about 10:00 am I dont know if we were the only ones to see them or not I looked in the rockford paper the next day but there was nothing said about them. I should have stopped what I was doing and called the air port