Multiple small flying craft spotted in the sky above my house

I heard what sounded like a jet flying overhead. Looked up and did not see a jet. Little flying objects caught my eye. At first glance I suspected migrating birds. Then when I noticed how erratic the movements were I knew they were not birds. I pulled out my phone to see if I could record them on video and hopefully be able to see what they were. I was able to get about a minute long video. There are little things flying high in the sky. I lost sight of them behind a cloud. A few minutes later a plane flew overhead. I took a video of that plane flying by with the same zoom that I did the flying craft for comparison. You can clearly see the second video is a plane. But the first video I do not know what is flying about. I took some still images from the video as well to try and identify the crafts. I still have no idea what they are.