Does the black racer snake flare its head?

Yes, the black racer snake (Coluber constrictor) can exhibit head-flaring behavior, especially when threatened. This display involves the snake lifting and spreading its head to appear larger and more intimidating to potential predators. It's a defensive tactic that helps deter threats without resorting to aggression. However, black racers are generally non-venomous and tend to flee rather than confront danger.