Significados de dark burrow en inglés

Only a vague flash of vision, an image of the great owl in its dark burrow.

He was alone in the dark burrow.

Now when Henny-penny, who had just got into the dark burrow, heard Cocky-locky crow, she said to herself:

Recklow watched the wire unreeling, foot after foot, rod after rod, plumbing the dark burrow of the Boche deep down under the earth.