This pose is very rarely taken from the ground. It is usually featured in transitions between other poses. I found a video where the base takes the flyer from the back bird and holds it nicely. How to proceed from this pose is only a matter of imagination, and the search is still ongoing, who has what idea for this.
acrodicted com: a nice hand held back bird pose taken from back bird
Here’s another way to enter reverse bird in hands from the ground. There’s no pause in the pose—the movement flows right through
Ezt meg kellene csinálni úgy, hogy megtartjuk a madarat. Acro Nerds