How do nightjars like the chuck-will's-widow use distraction displays to protect their nests?

The text explains that the chuck-will's-widow, among the nightjars, displays remarkable parental care. When an intruder approaches the nest, the mother bird uses distraction tactics by throwing herself on the ground, ruffling her feathers, and limping away from the nest. This behavior draws the intruder's attention away from her eggs or chicks, allowing them to remain hidden and safe^[1].

If the nest is discovered and threatened, the parents express great distress, demonstrating their protective instincts^[1].