Whatever the position taken up with assertion, the egoic or separated sense-of-self will cling to that self-created perch for stability.
With fear of falling from that perch (or being pushed) the claws tighten and tension in the body increases.
There is a locking on and locking up which makes release and flying far less likely… and eventually inconceivable.
Welded to the perch, identified with the perch, by the ‘guano’ accumulated from relieving the bowels in the same place, or constipated by fear of letting go… starvation and immobility lead to death.
Was there ever a ‘parrot’ or a ‘perch’ in truth?