A little more about the animals and snakes in New York and the Northeast of the USA -
New York State has lots of black snakes, and many copperheads. The copperheads are the dangerous ones and do have the triangle shaped head, where the black snakes do not. Black snakes are not poisonous.
In some small areas there are also timber rattlers, again with the wide triangle shaped head, but also with the rattle at the end of their tail. These are not very prevalent and in all of my hiking I have never even seen one, except in museums. Their wide head and rattle make them easy to identify. Those in the museums had black markings on a pale yellow body.
There are lots of black snakes and slight variations of them in color and markings. None are poisonous, and most adults are 2-4' long and 2-3" in diameter, but they can grow to be very much larger.
None of the small head snakes in this area are poisonous. Many garden, green, and yellow snakes and variations, and and all are less than 3 ft long and 1" diameter.
They also have hog nosed snakes and these are worth a separate noting, because there are quite a few of them in pocket areas around the region. My one significant encounter with them was in a marshy area a little South of Pawling, NY in SE Dutchess County. These snakes are colored similar to copperheads, though slightly darker similar patterns on black bodies, but they have a small head and the funny flat nose shape similar to a hog/pig. If a hog nosed snake is threatened, they will rear back, head high like a cobra, and hiss at you. Striking or severely threatening them might get a strike like a rattle snake when they appear to bite you, but they don't usually even open their mouth, just butt you with their head. When all else fails they will simulate death like an opossum, and turn their head inside out and back on their body, head one way and jaw the other, making them look like their head was cut off and they cease moving, playing dead. They will remain like this until the threat ceases (you or the threatening animal leaves the immediate area). Then they will come back to life and go hide somewhere. My one encounter had three of them close together and all reared back and hissing at me, so a quick retreat back to safer ground, was my response. Another day my uncle was trying to retrieve a model R/C airplane and encountered them. He wanted the airplane bad enough that he continued in his attempt past them to retrieve the airplane and was struck in the leg twice, but with no bite and no damage. I think he had dealt with them before and wasn't afraid of them.
Generally, no snake or larger wild animal wants to encounter a human, and if they sense that you are near they will do their best to be gone before you get there. Noise and vibration of the ground from walking is usually enough of a warning to them. But a close encounter is possible if they don't sense you coming. Climbing a steep rocky hill on a warm spring day and reaching for a rock high above your eye level is a good way to discover a hand full of startled snake. Look before you reach or step. They like the warmth of the Sun and come out of the ground to warm up on the rocks.
Skunks are easy to identify, usually by their unmistakable smell and black bodies with white stripped backs from head to tip of tail. Threaten them and you might suddenly begin to smell like them when they spray you. It's potent, and very hard to clean off. They are night feeders too, and not very fast moving. They will avoid you if you don't corner them, as will most other wild animals but they don't see very well, even if out when it's light.
The chipmunks are more like a hamster, brown and similar size, but with racing stripes of black and white the length of their bodies and a kind-of shape like a young squirrel. They hunt for food 24/7 with short naps between foraging trips. Like I said before, they tame easily when their stomach is getting satisfied. They are a lot of fun to watch, especially when in groups of 2 or more, but they will also keep their distance from humans unless food aroma or an impending hand-out draws them closer. They do bite if you try to pick them up though, again much like a threatened hamster and they are not poisonous.
You usually won't see raccoons, skunks, opossums, rabbits, foxes, or deer in the daytime. They are night feeders and avoid humans that way. If you do see one in the daylight, they are maybe more hungry than usual, so out searching for food a little early, usually in the low light evenings. If you see an animal during the bright daylight and it's wandering and staggering around stay far away from them, because they likely are sick with rabies. I've only seen a rabid skunk one time, and it was walking circles in a vacant lot, stopping randomly and swinging it's head high and over it's back for a bit, then resuming the wandering circle. Obviously this is not a normal action for any animal, especially a wild one, and the game warden verified that this skunk was rabid and shot it.
So, more information about the animals in the forests of NY and New England, but most other parts of the country have similar animals, so much of this will apply. You just have to know what animals that you might encounter during your planned walk. Many will be the same if here in the USA, but there are other animals in other parts of the country that you may encounter. Be knowledgeable of what is there, and how to deal with them. In most cases the "more afraid of humans than humans are afraid of them rule applies ". Carry a walking stick. It helps when walking on rough ground, but it also makes a good weapon for animal or human hostile encounters. Make noises like a rattling metal cup freely swinging from your pack. A police type whistle can be effective too, but please don't take air horns or similar. Blowing one every hundred feet of your walk is likely to empty the whole forest of it's animal population. It's nice to be able to see and photograph the animals in their habitat. You only need to keep them at a safe distance, not running into the next county. It's their home, so respect it and be polite with them.
Charley