Noticed black object above (NW) tree line suspended for @1 min, it then moved (W), hovered around @2 min & vanished.

No clouds, clear crisp blue skies. Breezy. In back yard doing yoga, laying on my back facing NW/W sky, heard & watched a helicopter pass thru my line of sight. Not common but not unusual for helicopters to fly in the area.... did noticed it looked gov't/official. I can't remember if my music turned off before or after the helicopter... either way I had to restart my playlist on my phone. I'm only mentioning this because you ask below.... otherwise no other issues and it started right back up. Not sure how soon after the helicopter, I noticed a distinct black dot above the tree lines (NW 320°). Suspended, not moving and completely still. The lack of movement against the vibrant blue skies are probably the only reason I noticed it... as we have a hawk nest near by and lots of bird/wildlife activity in our neighborhood. Don't know how long it was there or how long I watched it... maybe 30 seconds give or take the time it took me to comprehend this wasn't a hawk or sun spots. Then it moved. A fast smooth burst, stopped and moved again (W 270°). At this point, I'm thinking drone or UAP. I grabbed my phone, stood up and took 2 short videos capturing the object while it was hovering & flying in area. Note that while taking the videos I made the mistake of looking thru my phone and lost sight of the object on the screen. In video 1, I only saw a bird flying on my screen and actually dismissed the whole thing and stopped recording. However when I looked to the skies with my naked eyes I saw both the bird and object. I immediately started recording again and was able to zoom in a bit and pick it up. The object then vanished. It didn't return. A description of the object is difficult as I couldn't distinguish it's true shape as it seemed to look different depending on the angle it was flying. Black in color. I'm guessing that though it appeared to be the same size as a hawk/eagle or drone to the eye, it was a lot bigger and father away then appeared. Birds and drones also don't disappear into thin air.
Object briefly visible in videos.