Conspiracy

For the good of the next generation, the two of them conspired to deceive.
When the Large Moving Two-Legs approached their camouflaged hideout, they both flew, seemingly startled, into the air in opposite directions.
Mom called pitifully; Dad appeared to have suddenly and mysteriously suffered a broken wing.
As the Two-Legs approached to give aid, he flopped and struggled a little further to the right.
Mom coasted slickly by, ever further to the right.
When Two-Legs reached down to help Dad, he rose with piercing cry and flew far above the pastoral scene.
Two-Legs shaded its eyes from the sun, as the two congratulated themselves on their subterfuge.
When Two-Legs turned left, toward the obvious but craftily-hidden nest
on the gravel next to the lawn, the show resumed. There were three speckled eggs in the nest.
Killdeer!