hunting habits

"I think it will have found a lair- a ruin, an abandoned building, perhaps the sewers. I can't say where. But if it hunted by night, and killed only for food instead of sport...Well, how many murdered corpses greet the dawn from Rome's alleyways, or vanish forever during the night? I tell you again, these lizard-apes are very cunning."
-Killer pg. 119