By offering shelled or unshelled peanut in your bird feeder, you will attract a variety of birds to your garden or backyard.
unshelled peanut bird feeder
A peanut bird feeder is an excellent addition to the other bird feeders in your backyard because it will attract a greater variety of species, both large and small birds. Because of their high levels of protein, oil, and fat, peanuts are an excellent choice for you to include in the food that you provide for the birds that visit your backyard. You are welcome to provide whole peanuts still in their shells, but you should make sure to use unsalted peanuts rather than the salted varieties sold in grocery stores. Because of their size, larger birds like crows and jays are the only ones that are typically capable of cracking open unshelled peanuts. Raw peanuts that are shelled and sold in stores that sell bird seeds are a tasty treat for smaller birds. Or, if you're lucky enough to have a grocery store near you that carries them, unsalted roasted peanuts. You can also use unsalted shelled peanuts and put them in a peanut bird feeder for clinging birds or in any feeder that will dispense the larger peanut pieces. Some examples of such feeders include large mesh bags, hopper feeders, and platform feeders. Put out only the amount of peanuts in your feeder that the birds will consume in a single day during the summer and in warmer climates. Peanuts have a high propensity for developing mold and deteriorating rapidly when exposed to environments that are warm and moist. You may purchase peanut bird feeders that have been particularly constructed. These feeders are made of steel mesh or wire and feature holes that are around 6 mm in diameter. This forces the birds to pick at the nuts and limits them to taking only little bits. Peanuts are one of the squirrels' favorite meals, and if given the opportunity, they will consume the whole supply of peanuts that you set out for the birds in your garden. Because of this, you will frequently discover that peanut feeders are also squirrel-proof. 
unshelled peanuts for birds
Larger types of birds that are frequent in gardens are likely to enjoy unshelled peanuts, which are a great way to encourage them to forage for their own food. Peanuts are a tasty treat for a wide range of animals, notably birds who dine at bird feeders hanging from the ceiling. Although larger birds like jays, jackdaws, crows, and magpies will eat peanuts while they are still in their shells, it is not uncommon for smaller birds like blue tits to crack apart the shells to get to the nut that is hidden inside. You may attract birds to your garden by placing unshelled peanuts on a bird table or ground feeder, or you can try stringing them on some sturdy thread and hanging them up throughout the yard. In order to attract woodpeckers and nuthatches, you might also stuff unshelled peanuts into holes in a log or tree branch. Birds of a smaller size, such as wrens or robins, will appreciate eating peanuts that have been crushed or shelled. They will be able to consume the little portions in a short amount of time, which will lessen the likelihood that they will be attacked by predators such as cats while they are feeding. Another alternative is a suet fat cake, to which you may add crushed peanuts to provide extra nutrition for the birds during the cold winter months. However, there are certain precautions you should take before offering peanuts to the birds in your yard, despite the fact that they are a convenient way to provide all-around healthful snacks for them. To avoid harming your birds, avoid feeding them salted, flavored, or dry-roasted nuts. Birds can't process significant amounts of salt, so eating it can make them very sick or even kill them. During the breeding season, it's important to not put out whole peanuts since the parents may feed them to their young, perhaps leading to choking. Either don't put any peanuts out at all or do so but break them into smaller bits. In addition, kibbled peanuts can be purchased on their own or as a component of other bird food blends. Peanuts may grow rancid and moldy if left out for longer periods of time, which can contribute to respiratory illnesses in birds. This means that you should limit the number of peanuts your birds get at one time. The droppings that accumulate around bird feeders should be removed regularly to prevent rodents and other unwanted visitors. 
unshelled peanuts for squirrels
Finding a video of feeding a squirrel with unshelled peanuts prompts the question, "can squirrels eat unshelled peanuts? How risky would it be for them to eat?" Perhaps you've considered feeding the squirrels in your backyard with peanuts, but you're not sure if it's best to remove the shell first. They prefer the peanut and are only willing to eat some of them out of the shells. Unsalted unshelled peanuts are safe to eat since cracking the shell helps maintain healthy teeth. The main parts of peanut shells are cellulose and lignin, which are also the main parts of the wood. The ones without salt are safe for both humans and squirrels. If a squirrel ate a lot of shells, the shells could build up in its gut and cause a blockage. I don't think this would ever happen because squirrels don't usually eat the whole shell. Plus, their sharp teeth completely break down the shell, making it almost impossible for a blockage to happen. When a squirrel is fully grown, its front teeth are sharp, which makes it easy for it to break through peanut shells. Some people who eat both the shell and the peanut say that when you eat the shell, the peanut tastes even better but is not healthier. 