Premise
I need help designing the behaviour/hunting patters of a beastie that lives in the Canadian wilderness to terrorize our protagonists.
Information
The area this creature would live in would consist of densely wooded coniferous forests. Creature would be an ambush predator.
The creature is relatively large/tall when compared to a human, has head-pulpifying strength, uses sound to hunt and is cunning enough to create and lure prey into traps. Has a monstrous worm like head (regardless of biological plausibility)
Question
Based on the aforementioned information, what would this creature actually hunt like? How does it avoid having its monstrous bulk scare off prey items?