Feather Slugs

Feather slugs come in a variety of colors. They are often found on the ground where they eat bacteria and microbes out of the dirt while keeping their single eye out for predators. If they spot a predator they stick their eye in the ground.
This makes it so that predators cannot pull them from the ground. This is not always necessary as many animals figure them to be no more than she bird feathers and so do not investigate them any further.