What is the collective noun of twigs?

There isn't a widely accepted collective noun for twigs. However, some options that could be used are:

* Bundle of twigs

* Pile of twigs

* Heap of twigs

* Clump of twigs

* Sprig of twigs (though this is more commonly used for a small collection of leaves or branches)

Ultimately, the best word to use depends on the context and the specific arrangement of the twigs.