Which description best characterizes the Northern Potoo's roosting posture?

Answer

Adopting a stiff, upright, elongated posture on a vertical snag

To achieve perfect alignment with the wood, the bird positions itself rigidly upright along a vertical surface, stretching its outline to eliminate curved avian shapes.

Which description best characterizes the Northern Potoo's roosting posture?
birdfaunawildlifecharacteristicpotoo