Summarize the following:
The breast on male robins is a rusty red, deeper than that of their female counterparts. The female breast will be lighter in color, trending towards reddish-orange. Wing and tail feathers will also be different. Male robins tend to have darker black wings and tail feathers while females typically have a charcoal tone to their plumage. There is less contrast between the head and back feathers in females (where they are typically a blackish gray color) than among males. Nests are built primarily by females. Male robins assist the building effort only occasionally. If you can catch a robin in the act of building its nest, chances are you've identified a female. Male robins will care for the young at night during their first year. Female robins use this time to incubate the second brood but return during the day to feed and care for the hatchlings. Males pursue females and may engage in fights with other males to ward them off their nesting grounds. Males often sing to attract females, though both males and females are capable of vocalizing.

summary: Study the robin's plumage. Discover which bird is building the nest. Observe nesting behavior. Pay attention to mating behavior.

Summarize the following:
Cocaine is a white powder that is commonly snorted through the nose. Look for a powdery residue on the person's nose and face. Even if the person has wiped away traces from his or her body, you might spot a residue on the person's clothing or on household surfaces. Check for items under the bed or under a chair that may have been used as a flat surface for snorting. The person may explain that the residue is powdered sugar, flour or another harmless substance. If you see it more than once, especially in an unlikely place (like on a magazine under the bed), it's probably not powdered sugar. Cocaine is hard on the sinuses, and can cause a perpetual runny nose. Heavy users often sniff as though they have a cold, even if they don't demonstrate other signs of being sick. Touching or wiping the nose frequently is another sign that the person may be a cocaine user. After a prolonged period of heavy use, a cocaine user can experience nosebleeds and internal nose damage. Since it's a powerful stimulant, cocaine causes a person's eyes to look red and bloodshot. See if the person's eyes look red and watery at odd times of the day. Cocaine causes sleep loss, so the person's eyes will look especially red in the morning. Cocaine causes the pupils to look wide and dilated. Notice the person's pupils to see if they look strangely dilated, even in a room that's well lit. Since having dilated pupils makes a person's eyes more sensitive to light, you may see the person wearing sunglasses to protect sensitive eyes. Dilated pupils last only as long as the actual high, so this physical sign is easy to miss. Many other types of drugs also cause dilated pupils. The presence of unnaturally dilated pupils does not necessarily indicate cocaine use. Serious users sometimes dissolve cocaine and inject it using a needle. Pay attention to the person's hands, forearms, feet and legs, and look for small puncture wounds that indicate a needle was inserted there. If you see tiny "track marks," the person may be using cocaine or other illicit drugs. Cocaine can be snorted in powder form, smoked as crack cocaine, or directly injected. There are various items involved in its administration that you may find. White powder on mirrors, CD cases or other surfaces. Rolled up dollar bills, pipes, crack spoons, small plastic bags. Lemon juice or vinegar can be mixed with cocaine to produce a more intense rush. Sometimes heroin is taken at the same time as cocaine. This is known as 'speedballing.'

summary: Look for white powder on the person's nose and belongings. Notice if the person sniffs frequently or always has a runny nose. Check for bloodshot eyes. See if the person has dilated pupils. Look for needle marks on the person's body. Look for drug paraphernalia.

Summarize the following:
Avoid hard foods, as well as foods that require you to stretch your mouth open wide. These can include nuts, hard candy, hard baked goods, and larger fruits or vegetables like whole apples or uncut, raw carrots. You should also avoid chewing gum and other stretchy candy, such as taffy. If you sleep on your side and you're experiencing jaw pain, you may want to try sleeping on your back at night to remove pressure from your jaw. You may also want to invest in a mouth guard to keep from grinding your teeth at night, as this may contribute to jaw pain without your realizing that it is happening. Over-the-counter pain relievers like acetaminophen or ibuprofen can help treat inflammation and other symptoms of jaw pain. Gels or mouth swabs containing Benzocaine or similar active ingredients can be found at most drug stores and provide topical pain relief to teeth and jaws. Move your jaw open and closed, then work the jaw from side to side. Gradually increase the frequency of these exercises. First try using a hot compress, but if heat does not alleviate pain or inflammation, try a cold compress. Run a towel or wash cloth under warm-to-hot tap water. Wring out excess water. Once the towel is at a comfortable temperature that will not burn the skin, apply it to the affected area of your jaw. Hold the hot compress on for about five to ten minutes, and repeat several times each day. If a hot compress does not work, use a cold compress or an ice pack. Ice packs should be used for about 20 minutes on, then 20 minutes off. Make sure you wrap the cold compress in a t-shirt or other thin fabric so the cold doesn't damage your skin. You may also want to try alternating hot and cold compresses to maximize the benefits of each. Use a hot compress for five minutes, then a cold compress for five minutes.
summary: Change your diet. Change the way you sleep. Use medication to treat pain. Try a topical agent. Exercise your jaw muscles. Use a hot or cold compress.