1.   An imperceptible breeze forced the leaves of a regiment of birch trees into anxious quaking.

2.   Clare could see more rusty chain around the slender, peeling, silver trunk of a nearby birch tree.

3.   I try to hold on to a slender low branch of a birch tree.

4.   It is a fairly sparse forest mostly of birch trees on a light, sandy soil.

5.   Last week, the tree swallow pair abandoned its nest box in the old birch tree in front of my window.

6.   One birch tree lay newly fallen, clean with silver bark.

7.   The birch tree outside is only just beginning to look green, but at least it is, I suppose.

8.   The path led through the slender birch trees.

9.   ...the gnarled trunk of a birch tree.

10.   The First Spiritualists were camped out at the edge of a grove of birch trees.