Nature has been an inspiration for artists for centuries, and doodlers are no different in this respect. For those who want to try and re-create scenes of nature in their doodles there are plenty of simple ways to do just that. All it takes is some practice, and maybe a glimpse out of the window.
Organic Doodles
One of the simplest doodles someone can draw is a basic tree. A trunk and a round top of foliage, while looking like something out of Dr. Seuss, is easy enough to draw. By forking the trunk you create branches, and by forking the branches you create more branches. This can be used to create a more realistic looking tree (even in miniature), and once the branches are filled in with leaves it's obvious to anyone who's ever seen a tree what you're drawing. Once you have one tree it's just a matter of time before you add in more, creating a little doodle forest; perhaps one filled with tweeting birds and roaming bears as well.
Trees are just a start when it comes to organic doodles. Subjects like flowers, whether they're big, happy sunflowers or deep red roses, are a common doodle. Vines and bushes are also fairly common, along with pine trees, and a world of animals. Stalking lions, dopey-faced puppies, sleeping kittens, and dozens of others are all options for those who find themselves with wandering minds and pens in their hands.
Start With The Frame And Work Your Way Out
No matter what you're doodling, in your mind try reducing it to basic shapes first. Let's say you want to draw a wolf. A circle for the head, with a longer circle for the muzzle allows you to get the basic proportions. A long oval for the body, and tubes for the arms once the general shape is laid out, start sketching in the details in light strokes. Pen or pencil doesn't matter; the point is that you want to be sure you can fix mistakes and cover them up with darker strokes. Circles for the eyes and nostrils, triangles for the ears, etc. Always start with basic shapes, and then fill in the details.
Everything in nature can be reduced this way. Whether it's a boulder sitting on a crag or a gerbil curled up and being adorable, these images can all start out as basic shapes. This allows you to really get a feel for the scope, size, etc. before getting too involved in the details.
Filling In The Blanks
Doodles tend to fill up the blank spaces in notebooks and on worksheets, which means that often it's easiest to take something that's already on a page and slowly overgrow it with your natural-looking doodles. For instance, take a notebook from the Mead Company; the little Mead logo will be on the page in big, fat bubble letters. These blank spaces are prime doodling space. You could fill them in with a bark pattern, and doodle leaves sprouting off the Mead branches, for instance. Alternatively the Mead letters could be filled with roots, and thick grass and flowers might be growing out of the top. The word itself could be turned into an animal, given legs, a tail, and a thick coat of fur.
Alternatively if there are holes punched into the side of a notebook then those holes could easily be surrounded by flower petals, making it look like there's an invisible center. If there's space between the lines, along the margins, or just around the title of a particular report then those are places to fill in with nature doodles.
Provided, of course, you're not going to need to turn this particular piece of paper in to your boss or any other authority figure.
Let It Flow
The primary difference between a doodle and a drawing is that a full-fledged drawing tends to be planned or plotted out in advance. A doodle on the other hand is just started almost at random, and then continued until the doodler runs out of time or desire.
Rather than being a disadvantage this should be allowed to work in the natural doodlist's favor. Doodles that take shape as part of nature tend to blend together seamlessly, allowing a doodler to create an entire landscape as if that was the purpose all along. Sometimes these doodles will take on a life of their own, and the doodler will just keep adding details. It might begin with a tree, and then the tree will need a bird's nest. The bird's nest will need a bird, and the bird should be cheeping. Because the bird is cheeping it should attract cats slinking around the base of the tree. If there's a tree with a bird then there should be flowers and grass, and that means there should be bees. If there are bees there should be a honeycomb, and if there's a honeycomb it means there should be a bear lumbering around somewhere in the background.
It's important to remember that there's no one, right way to doodle. Even if your trees look flat and your animals look like caricatures, so what? This is your doodle, and it can look like whatever it wants. Additionally, if you want to become a better doodler then how are you going to manage that except by practicing?
Nature In All Its Forms
You shouldn't feel limited in the parts of nature that you can reproduce in your doodles, either. For instance, if you're stuck in a room with buzzing flies then feel free to draw some of them in your margins. Draw them splattered and swatted if it would make you feel better. If you're a fan of scaly things then snakes, geckos, crocodiles and other reptiles and amphibians are all fair game. Snowmen with fluffy white owls on their heads, or whales peaking their big, friendly faces out of the water are all possibilities when it comes to nature doodles. In short, remember that you have no limits except the limits you impose on yourself.