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

The text describes how the chuck-will's-widow uses distraction displays to protect its nest. When an intruder is near, the mother bird throws herself upon the ground, ruffles her feathers, and flutters, moving away from the nest. This acts as a decoy to lead the intruder away. Once the intruder is tricked, she suddenly recovers from her feigned injury and darts back to her nest from another direction^[1].

If the nest is found and disturbed, the parents show great distress and, after a consultation, take the eggs in their mouths to a safer location^[1].