Aerial Predator. The snallygaster attacks from the air, swooping down to kill prey or entangle them in its tentacles before carrying them off to its lair for consumption. Its initial attack is prefaced by a horrific shriek that can be heard up to a mile away. Snallygasters are not speedy flyers, but they have excellent maneuverability in the air. They usually claim hunting territories within one to four miles of their lairs.