If the two large wings that the psychic shrieker possessed were counted as part of its limbs, then it would have six limbs, not four.
These abundance of limbs is why the two fore limbs attached to its chest being useless didn't matter much to thr psychic shrieker. Unfortunately, the psychic shrieker couldn't use its large wings to fly because they were bound to.
The psychic shrieker also got a good look at them. Its large single eye on the top of its beaked face was staring intensely at them.
It looked like it wanted to eat them. But it was willing to do what needed to be done to eat them. It attacked him as soon as it determined that they were its enemies.
As a creature of the pathway of telepathy, it didn't need to move to attack its enemies. All it needed to attack was its mind, so the binding spreading all over its body didn't hinder it at all.
