CHALK BLUE

The Chalk Blue (clinging to A harebell stem, its loop,

From which there hangs the flower Shaken by the wind that shakes

The butterfly also) –

Opens now, now shuts, its wings, Opening, closing, like a hinge, Sprung at touch of sun or shadow. Open, the wings mirror

All the cloudless sky.

Shut, the milky underwing Cloud-mirroring, is bordered by Orange spots nailed there

By a pigmy hammering.