flat as a stone

Peripheral vision is always ON.
My step faltered even before I knew I had seen something,
even as my eyes swung to the left.
There on the hand railing,
snoozing in the sun
sat a tiny green tree frog.
Black bandit eye mask.
Flat as a stone.

When my husband leaned in for a closer look it opened bright black eyes and lifted its chin.
It seemed to be taking a reading on wind direction.
When you weigh as much as a leaf, and live in a tree, wind is something to ponder.