1.   A half-dozen anonymous workers scout ahead to check possible hive locations in hollow trees or wall cavities.

2.   Bats roost naturally both in caves and hollow trees.

3.   Like nearly all the other forty-five species, they nest in hollow trees.

4.   They left messages in a hollow tree on Seacroft estate.

5.   Whatever happened to Shurll, Jane wondered - did she go and live in a hollow tree?

6.   ...a hollow tree.

7.   Dormice spend much of the summer living in the treetops, and depend on a richly-interlaced canopy, with hollow trees for hibernation.

8.   Days were spent smoking possums from hollow trees, fishing or hunting, the pop of their shotguns echoing in empty land situated inside the Fort Worth city limits.

9.   In the new Congo Gorilla Forest, the public will enter through a hollow tree.

10.   Meanwhile, beware of takeout menus piled under rocks and stuffed into hollow trees.