When laying blood tracks it is important to vary the terrain:
Though most blood tracks at tests are run in stands of woods in reality deer don’t much care which way they vacate the premises when shot and wounded.
Get your dog used to tracking in all types of terrain and you will truly have a blood tracking dog worth having.
It makes sense to me that when blood is laid on the ground in an area where the predominant growth is pine trees the odor emanating from the ground cover in that area is different than odors emitted from the ground cover in an area where only oaks grow.
It follows that odors will be different in areas of brush, bare soil, high moisture, dry conditions, and so on.
If nothing else, varying the terrain may help teach your dog to focus and distinguish the target scent even when it’s mixed with the scents that are emitted by varying terrain components. That’s a good thing!
If a dog is truly concentrating on the blood track, changing terrains should not be a problem.
I often lay blood tracks in dense woods that cross over open terrain at some point and go back into another type of terrain.
The dog should know that tracking blood scent is the task at hand and should not break into a search pattern in open terrain or brush. The dog’s nose should be focused on blood scent from the ground and its head should be down.
A dog with a head up sifting odors in the breeze is not focused on the blood track and probably needs to be corrected by its handler.
The photos on the right are pictures of actual varying terrain in an area where I often lay blood tracks for practice.
I can easily run a track that extends 500-1000 meters that crosses 4 and even five types of terrain.
When selecting places to lay blood tracks for your dog try to find areas where the terrain is diverse and has at least a couple of different types of cover.
When it’s time to find that trophy buck or monster hog you will want your dog to go where ever the blood trail takes it regardless of the terrain.