I'll try one more time. The video I posted was small black birds. Likely crows. I posted it after a post about Hawks and I I mentioned the hawk behavior over my neighborhood. Unrelated other than they're all birds?
As to hawks hunting together, Google "Hawk Kettle"
View attachment 142019
When hawks do form flocks — called a kettle — it usually is to assist in hunting. They wait for one hawk to find a warm air current, called a thermal, then they all join in, using it to hold them aloft as they soar above and keep an eye out for food below.
Whatever the hawks are in my area they fly together often. So much so, I worry when the cat goes missing.
I was going to remove my post or the crow video, but the thread would have a lot of out of context comments. I'll leave my blunder as a public service announcement. Always use this formula: think -> post, never the inverse.