Seven to ten crescent/circle shaped objects in the evening sky over theChatsworth mountain

Around five pm while we were on a family walk we saw some bright yellow gold color objects flying in the sky. They looked like crescent shaped to me but like like circles to my daughter who shot the video. They were going in and out of the clouds in the sky so were reasonably high up. I felt that an aeroplane went through the group but not sure if the plane went through or above them. They could potentially be drones, but their flight paths or moves were not symetrical nor appeared synchornised in any manner. In the video they are seen as spherical or circular objects, but to my naked eye they looked like crescents. They were in the sky for about seven to ten minutes as we continued our walk. We do not have any background in spotting UFOs. So not sure if they were drones or UFOs but there maybe some military details on if they were UFOs.
In the videos you will see them as emerging round balls coming in and out of focus throughout the video. Difficult to count how many because there were several but all were not visible at one time and their movements prevented our ability to count them. We observed them while walking between 10452 Larwin Ave and 22165 James Alan Cir, Chatsworth, CA 91311. Would love to know if they were UFOs or drones. So pleae confirm. Thanks.
the recording file is 102MB and it would not upload to the site. We have the recording that we can share by alternate means if you want it.