Besides differential patagium adjustments, what structure assists in stabilizing the glide and making minor corrections?

Answer

Their flattened tail, used as a rudder

The flattened tail functions as a rudder, which the squirrel utilizes to help stabilize its glide path and execute minor adjustments during flight.

Besides differential patagium adjustments, what structure assists in stabilizing the glide and making minor corrections?
animalmammalspeedglidesquirrel