Myth # 1) They are noisy.
Reality: Chicken hens are one of the quietest domestic animals. They cluck softly from time to time, and will often cluck to let you know they recently laid an egg. Unless they are in danger, they do not squawk. They sleep at night just as people do and are completely quiet from dusk to dawn. They are quiet because they want to be left alone to hunt and peck and do not want to attract attention to themselves. Roosters, on the other hand, can be quite noisy as this is their role in the flock.
Myth # 2) They are dirty.
Reality: Chickens are very clean animals. They will occasionally give themselves “dirt baths” but this is actually in order for them to preen their feathers and keep themselves clean and cool. Their droppings usually do not smell, especially if they are allowed to range freely in a grassy yard and are not caged or confined in a small area. The droppings are easily hosed off and break down into an excellent fertilizer for the lawn. Just like all pets and animals, chickens need responsible owners to keep the area tidy and clean out the living area from time to time.
Myth # 3) They are “3rd World creatures”.
Reality: Chickens have been given a bad rap. Because they are so low maintenance and cost so little to raise, many people view them as a social status symbol of the uncivilized or uncultured class. This is completely an image issue. Some areas of the world have problems with stray dogs. This is not because dogs are inherently “3rd World creatures”, but rather because the animal control laws of those countries are not adequate.
Myth # 4) They carry disease.
Reality: Chickens are just like any other animal including humans, dogs, cats and others when it comes to disease. They are not any more likely to carry disease than a dog. If they are well-cared for, fed, watered and kept in a clean environment, then they are more likely to stay healthy. Diseases are much more likely to be harbored in confined animal feeding operations due to their sheer size and tight conditions than in a healthy backyard setting.
Myth # 5) They attract pests.
Reality: To the contrary, chickens love to eat insects of all kinds including worms, beetles, grasshoppers, earwigs, mosquitoes and their larvae, fly larvae, ticks and more and are one of the best methods of insect control. Chickens have even been known from time to time to eat small mice! As long as their feed is properly stored just as dog or cat food should be, it will not attract added pests either.
Myth # 6) They attract predators.
Reality: It is true that predators such as foxes, skunks, racoons and hawks often eat chickens if they can catch them. However, these same predators might eat cats, rabbits and even small dogs if given the opportunity. Chickens do not attract predators any more than these other animals. They have instinctual defenses that protect them from these predators, such as sleeping in a protected area (coop) at night and making very little noise. Most family dogs and cats generally leave chickens alone and throughout the ages have all lived together in harmony.
Myth # 7) They need a lot of space.
Reality: Free range chickens need very little space. Most poultry associations designate that chickens need about 3 square feet of ranging area. Of course they will do even better with more, but an average-sized backyard would easily accommodate 4-6 chickens -no problem. Chickens are completely content to peck around in a fenced yard and have no reason to flap over fences, especially if they are not able to look through those fences at scrumptious bugs on the other side (privacy fencing works best). A small coop to sleep in at night is required. This can be very small if it is only used for sleeping. A coop that is 3x3x3 feet for about 4 chickens would be perfect if they are allowed to roam feely during the day. A coop of this size is about the same size as an average dog house.
Myth #8) They require a lot of equipment, work, or time.
Reality: Chickens are very low maintenance. They simply need water, food and shelter. They do not need to be groomed, washed, pet, walked, spayed, neutered, or trained. You can spend as little or as much time with them as you want. Their bedding area should be cleaned out about once a month which is not much of a problem.
Myth #9) Chickens are dangerous to have around children.
Reality: While chickens are thought to have evolved from the Tyrannosaurus Rex, chickens are definitely not dangerous. Most chickens have no interest in humans unless they are feeding them. They have no teeth and could not hurt a child as a dog or cat might.
Myth #10) You need a rooster in order to have eggs.
Reality: Roosters are unnecessary in the laying process and, in fact, are unnecessary to raising chickens. Chicken hens will lay eggs with or without a rooster. The only difference is that with a rooster, the eggs may be fertilized. Without a rooster they are not.
Info taken from lifetransplanet.
and one more myth to bust...
Myth #11) All chickens carry Salmonella.
Reality: Sometimes chickens, just like other animals, can have Salmonella bacteria. When hens are detected with the bacteria only a small number of hens seem to be infected at any given time, and an infected hen can lay many normal eggs while only occasionally laying an egg contaminated with the Salmonella bacterium. Here are just some of the other animals who can can carry salmonella: lizards, snakes, turtles, hamsters gerbils, birds, dogs, cats, ducks, horses and even Humans!
More info see Salmonella.org