LoboHunter,
Gridding as AZshooter explained works very well. You want to pick apart the brush/trees to see ears, antlers, horizontal backlines, just parts of deer that are mostly hidden. I like to sweep the area first before gridding to locate the obvious deer in the open.

For a lightweight fluid head that is relatively inexpensive ~$80, you might consider the Manfrotto 700RC2. The nice thing about a fluid head is that if the tension is set right, you can pan it horizontally with your nose while glassing.