On december 22, 2019 at 7:31p.M., i was out in my backyard waiting on my two dogs. i looked up at all the stars since it was a clear, mild night. as i looked further west, i noticed there were about 4 lights, evenly spaced and blinking that slightly decsended down and then back up and disappeared. i didn't think anything of it although i thought it was odd that any aircraft would follow in the same pattern and proximity to the one before. then, i noticed more and more crafts coming out of what appeared to be nowhere and followed the same pattern. after seeing about the 5th-6th one, i grabbed my phone and recorded the incident. and they just kept coming. since i didn't know how many i missed when i grabbed my phone, i counted only the ones i did see and there were about at 10-11. the last one was lower than the rest and then went up and down erratically before ascending. i'm looking for verification on what i'm seeing as flares aren't usually well spaced out and don't descend down and ascend up erratically.