to photograph wild animals in the first place you need a good canvas, from 300mm up, you need both light and is stabilized either he or the camera. Without these things you can hardly take home a satisfactory picture.
Wild animals are wary and easily frightened so you have to photograph them from a distance unless you are accustomed to human presence so you must always remember to move in silence, even if you are several people otherwise flee before they can see them. A typical example is the deer, they have very sensitive hearing and sense the approach you since you are away so if want to photograph you have two choices, move quickly and quietly lurking and trying to cross them or wait until it passes close but you need to know the paths that normally fight.
Pay attention to scents, aftershave and deodorant to have strong smells and wild animals and hear them stay away.
Always try to go out on sunny days because the time of the shot must be very fast and if you must manually set the ISO on medium to high in low light so you always have a short time. This arrangement will also allow you to avoid the micro-shake blur due to your focal length lenses that push will be greatly magnified.
when I go into the woods I carry the bare minimum level of equipment, usually only have the camera with a telephoto lens on, a spare battery and a cloth to clean the lens, everything else is only useless encumbrance that in addition to slow the march also risks making unnecessary noise.
A detail often overlooked, which affects more males pee a lot ... maybe being in the woods and having put themselves need to pee freely ... not There is nothing wrong of course but the animals use urine to mark territory and go pee means to signal their intrusion in any animal in passing that he will stay well away from us or path we have embarked.
About paths avoid those beautiful wide and busy, with some birds have little chance to breed wild animals, then choose those small, barely visible because they probably are those used by their deer or wild boar when they move. Look at the ground while walking, the droppings are always good signs in the area to see if there something or not to photograph and observe on the ground even though there is evidence for example of a small excavation because the wild boar can also do some good holes in search of food.
to the photograph and will consider the light I suggest you also set the exposure on the single focal point as the focus, thus avoid photos where the subject may be exposed to evil maybe losing a potentially good shot.
not take along food, which is spread to attract animals, nature photos must be such, you can do in the parks to attract sparrows and robins but in a forest would only make the picture unnatural.
like walking, this is essential, do not go in the woods if you do not like to walk for hours up and down the trails and do not bring back the whining, the nature photos, or do it alone or in a well-knit group that knows how to move and get what he wants. If you carry someone who just wanted to make a picnic in a meadow you'll probably make a snack or complain constantly making you miss the "prey".
Photo hunt is carried out exactly as hunting guns with the difference that the animals instead of killing them unnecessarily you photograph, what I believe far more noble and worthy of note.