Chicken Diet
Chickens have a varied diet. Chickens are <!--del_lnk-->omnivores and will feed on small seeds, herbs and leaves, grubs, insects and even small mammals like mice, if they can catch them. Domestic chickens are typically fed commercially prepared feed that includes a protein source as well as grains. Chickens often scratch at the soil to get at adult insects and larva or seed. Chickens have a well-developed gizzard (a part of the stomach that contains tiny stones) that grinds up their food.
Flightless Birds
Although chickens are flightless birds, they do have a tendency to attempt flight. Chickens do this by runing and flapping their wings. Unfortunately, they are not capable of staying air bourne. Chickens sometimes can fly for very short distances such as over fences. Chickens will sometimes attempt flight simply to explore their surroundings, however, they will especially fly in an attempt to flee when they perceive danger or pursued by a predator.
Chicken Behaviour
Chickens are gregarious birds and live together as a <!--del_lnk-->flock. Chickens have a communal approach to the incubation of eggs and raising of young. Individual chickens in a flock will dominate others, establishing a 'pecking order', with dominant individuals having priority for access to food and nesting locations. Removing hens or roosters from a flock causes a temporary disruption to this social order until a new pecking order is established.
Chicken Reproduction
When a rooster finds food he may call the other chickens to eat it first. He does this by clucking in a high pitch as well as picking up and dropping the food. This is part of chicken courting ritual. When a hen becomes familiar coming to his 'call' the rooster may mate with the hen and fertilize her egg.
Broody Hens
Sometimes a hen will stop laying eggs to concentrate on the incubation of her eggs. This state is commonly known as 'going broody'. A broody hen will sit fast on her nest and will protest if disturbed or removed. She will rarely leave the nest to eat, drink or dust-bathe. All the time she is sitting in the nest she will regularly turn the eggs keeping them at a constant temperature and humidity.
At the end of the incubation period, which is an average of 21 days, the eggs (if fertilized) will hatch and the broody hen will take care of her young. Since individual eggs do not all hatch at exactly the same time (the chicken can only lay one egg approximately every 25 hours), the hen will usually stay on the nest for about two days after the first egg hatches. During this time, the newly-hatched chicks live off the egg yolk they absorb just before hatching. The hen can hear the chicks peeping inside the eggs, and will gently cluck to encourage them to break out of their shells. If the eggs are not fertilized and do not hatch, the hen will eventually grow tired of being broody and leave the nest.
Modern egg-laying breeds rarely go broody and those that do often stop part-way through the incubation cycle. Some breeds, such as the <!--del_lnk-->Cochin, <!--del_lnk-->Cornish and <!--del_lnk-->Silkie, regularly go broody and make excellent mothers.
Chicken Life Span
The life span of a chicken varies between 5 - 7 years although there have been cases of chickens living 20 years or so.
Chicken Predators
Besides humans, lots of animals eat chickens as well. The chickens' predators include: skunks, owls, raccoons, hawks, snakes, opossums, bobcats and foxes.