Meanwhile the forest dwindled to clumps of thorn; the banks became barren, and presently a strange sound made itself heard from ahead: a sibilant all-pervading roar.
Here the forest dwindled to scrub, and the scrub to bare rock.
The forests dwindled into grassland as they climbed and each night was colder than the last.
Treebeard tells of a time when much of Eriador was forested and part of his domain, but these immense forests dwindled over time.
The forests were dwindling after heavy logging, causing lumber mills to shut down.
It has declined since then as these forests have dwindled.
The Mexican forest occupied by the butterflies, once as high at 50 acres, dwindled to 2.94 acres in the annual census conducted December 2012.
Our once vast forests of the Eastern states, at least, have dwindled into parks among the plowed fields.
As he neared the foothills the forest dwindled to a savannah, floored with a dull, joined grass that creaked under the horse's hooves.
The forest dwindled smaller and smaller.