The hounds found a hollow in a huge tree to explore on our way yesterday. The hollow was very large, despite the tree still being alive
A tree hollow is a cavity in a living tree. Tree holes can be caused when an injury to the tree, such as breakage of a limb, creates an opening through the bark and exposes the sapwood. The sapwood is attacked by fungi and bacteria, which form a cavity in the bole of the tree.
New day - New Photo challenge 