Edward Thomas uses a restrictive rhyme scheme as he contrasts the glee of the aerial acrobats with the mood of their earthbound observer.

TWO PEWITS

Under the after-sunset sky

Two pewits sport and cry,

More white than is the moon on high

Riding the dark surge silently;

More black than earth. Their cry

Is the one sound under the sky.

They alone move, now low, now high,

And merrily they cry

To the mischievous spring sky,

Plunging earthwards, tossing high,

Over the ghost who wonders why

So merrily they cry and fly,

Nor choose 'twixt earth and sky,

While the moon's quarter silently

Rides, and earth rests as silently.