A "V" in the sky is, of course, three-dimensional, so the shape depends on the viewer's position. It also depends upon a bird "volunteering" to be the lead one, as that position takes more energy because they can't catch any lift from the air...
Those examples appear to show formations where the directional vector is parallel to the linear formations, consistent with PR106. The uniqueness of PR101 is that the directional vector appears to be perpendicular to the linear formations, and...
Birds are aware of wind and will orientate flight facing so the relative ground movement is towards where they want to travel.
They also often form echelons or J lines rather than V's perhaps depending on wind direction, into a headwind they...
I remember reading in a novel (although I can't recall the book) about a guy who is out in the dark to fix his car, and as he is looking in the trunk he sees a huge hand reaching for him ("the rapture", I think the interpretation was) ...and then...
Birds flying in a line rather than a V:
Source: https://www.youtube.com/shorts/_FfDNXypoF8
Source: https://www.youtube.com/shorts/trFAhFevyEE?feature=share
Here are some pelicans -- I see them in a line frequently, more often than in a V...
It all is insanely laughable. How can I "have an open mind" when we are fed with complete and utter nonsense videos? Ah, I suppose "the good ones are still being hidden from us!" Sigh (^3)