The black drongo keeps its neighbourhood clear of predators by fearlessly assailing them — as a result, other birds like orioles, doves, babblers, and bulbuls like to nest near the drongo. But the drongo is also a trickster, mimicking the calls of raptors to scare birds into abandoning their food.

The willie wagtail is aggressively territorial. It's known to harass much larger birds (including eagles), venomous snakes, and humans that wander too close to its nest. Before an assault, it flares its white "eyebrows", making it look especially enraged.