What Are The Types Of Bushfires?

Be more specific in your question, your wording could mean a couple of different things.

There are three types of "bush fires" defined as:
Ground Fires
Surface Fires
Crown Fires

Ground Fires are fires that are in or under the ground. Tree roots and peat are good examples of this.
Surface Fires are fires on the ground, like grass and scrubs.
Crown Fires are the scary ones. This is when the tree tops or the tree crowns catch on fire.

Ground fires are very hard to put out as you generally can't see them. You may notice the ground change color or plant life die. They tend to pop out and turn into surface fires, sometimes after months of burning underground.

A crown fire can have two fire fronts, the first is the crown fire that races thru the tree tops, followed shortly after by a surface fire. Some people get caught out by this thinking the fire front has passed them.

- DJ, Firefighter from Victoria Australia. Bush fire capitol of the world!