Sistrum Neck Loops as Horizontal Plane Flow Exits

Some sistrums use long-neck-birds like image A and B. Necks making loops are usually seen at the top of vertical flows like image C, or side flows like D. But A and B seem to be horizontal plane flows, (see my previous post) and I offer image F as a possible explanation.

Image F has an egg shaped torus with a horizontal silver band to mark it's horizontal plane. Those droopy loops are about horizontal flow exiting from a portal and re-entering using a different portal. It's possible that is what A and B are using the neck loops for.