Collocations for prey - noun

easy
Teenagers are easy prey for unscrupulous drug dealers.

helpless (esp. AmE), unsuspecting
They watched a hawk swoop down on its unsuspecting prey.

chase, circle, hunt for, look for, pursue, stalk
spot
capture, pounce on
a cat pouncing on its prey

devour, kill

prey for
The young deer are ideal prey for the leopard.

prey to (figurative)
She was prey to all kinds of conflicting emotions.

a beast of prey, a bird of prey
be prey to sth, fall prey to sth (both figurative)
The new government has fallen prey to corruption and fraud.