In one sentence, describe what the following article is about: Use a permanent marker to do this. The mark will indicate where you need to cut the pipe.  Make sure the circumference of the pipe is large enough so that the top of the soda bottle can fit inside. You can purchase PVC pipe from your local hardware store. The cone side of the bottle should be pointed toward the ceiling at this point. Check to see that the opening of the bottle inside the PVC pipe is not touching the ground. The PVC pipe should be propping the bottle up off of the ground. If the opening of the bottle is touching the ground, then you will need to cut a larger piece of PVC pipe.
Summary: Mark a spot 5 inches (13 cm) from the end of a PVC pipe. Place the opening of the bottle inside the PVC pipe.

In one sentence, describe what the following article is about: The damage can occur over time or within just a few hours, depending on the cause. Some possible reasons for feather damaging include:  Boredom. If the bird doesn't feel mentally stimulated, it will grow bored. Picking at its feathers is a form of distracting itself, much as when a human bites at their fingernails out of boredom or frustration. Diet. If the bird isn't getting a nutrient-balanced diet, it may resort to feather plucking. Stress. A person, pet or habitat could be provoking the bird to feel stressed. Lack of exercise, overly large or small perches, noisy or busy cage location, lack of chewing toys, lack of exercise, etc., can lead to the bird being stressed. You should move the bird to a calm, quiet and low-traffic room. Illness. A medical condition or disease can cause feather plucking or loss such as French Moult. If the feathers are patchy or thin, it may be one sign of mites. Look for other symptoms of mites or other parasites as well. These can include:  Crusted or scaly skin around the beak, legs, and eyes. Red lesions on the skin. Restless behavior, especially at night. Clicking noises. Tiny, moving red or black specks in the cage or feathers. It is important to rule out an illness before assuming the feather-plucking behavior is caused by boredom, diet or stress. Moreover, unless you are an expert, it can be difficult to diagnose a bird's illness.
Summary: Be aware that a parakeet can damage its feathers for a number of reasons. Look for signs of mites. Seek advice from your veterinarian.

In one sentence, describe what the following article is about: When building a coop, elevation can help protect your chicken from potential predators. This can prevent rodents from nesting near your chicken coop, as they will be more exposed. Ideally, have your coop elevated about a foot off the ground. Unless you're very familiar with building yourself, it's best to have professionals build your chicken coop. If your coop is already in place, it may be hard to elevate it. However, you can actually insert fences under the ground. This can help protect your chickens from animals that burrow, such as rats. You should bury about six inches of fencing wire under the ground to protect your chickens. Make sure the electric current is not too strong. You do not want your chickens to be harmed by an electric fence. Look for electric wiring that aims to stun predators rather than kill them. If you're not familiar with building fences or working with electronics, have the fence installed professionally. You do not want to end up electrocuting yourself while building the fence. Chickens are also vulnerable to attacks from flying animals such as hawks. A wire mesh roof should be installed over the coop and run. This can prevent hawks from sweeping in and picking up chickens. Your chicken's coop and run should be surrounded by a fence. A fence should not just serve to keep your chickens inside. It should also protect them from predators. A mesh fence is the ideal material to keep things like foxes and raccoons out of  your chicken coop. Your fence should be at least five feet high to protect your chickens.
Summary:
Build your coop off the ground. Bury fences underground to keep vermin out. Try an electric fence. Use a roof to protect your chickens from flying predators. Opt for a tall mesh fence.