A shoot in the wilds calls for preplanning and preparation. You should carry only the minimum of gear with you. Think of your subject and its habitat while going through your camera bag , and discard anything that is not essential for good pictures under the circumstances in which you expect to be shooting. If you are going to be off the beaten path, in true wilderness, check anticipated weather conditions and bring appropriate outdoor wear and survival gear. Carry a first-aid kit, cellular phone, detailed maps of the area, a signaling device and other items associated with travel alone outdoors.
Animals are adept at concealment.
You need to keep your eyes open and learn as much as you can about their behavior. If you plan to travel in this fellow's territory, make sure you observe every safety precaution. His portrait is not worth risking your safety. There are several excellent wilderness survival and travel websites, or you can visit your local library, to find out what gear is recommended for the area you will be going into. Give your family members or a reliable friend a plan of your route and the timing of your trek.