A-z - Animals

Are chickens mammals?

Keep reading to watch this amazing video

key point

  • Chickens are not considered mammals, they are birds.
  • Chickens are descendants of Galliformes, an animal that survived the asteroid that killed the dinosaurs.
  • The disappearance of the dinosaurs allowed birds and mammals to develop into various forms.

Chickens are not mammals. They are birds. They have feathers instead of hair or fur, and they have wings, though they don't fly very well. They don't have the teeth that most mammals have, they only lay eggs, and they don't feed their chicks with milk.

There are some birds that do feed their chicks with crop milk, but chickens don't. Even birds that produce milk from crops are not considered mammals.

As birds, chickens are much younger than mammals, and the order galliformes they belong to survived the asteroid that crashed to Earth 66 million years ago and wiped out non-avian dinosaurs and tree-dwelling birds.

The extinction of the dinosaurs allowed birds and mammals to develop into the various forms that exist today. In fact, around the time of this extinction event, birds were just beginning to emerge as a class of animals.

is a chicken mammal
Farm rooster. Cockfighting, cockfighting village scene

© iStock.com/Isaac Ruiz

Why do people think chickens are mammals?

People might think of chickens as mammals because they are often found on farms with other livestock such as cows, sheep, pigs, and horses, which are all mammals. People also eat chicken, which some believe is healthier than beef or pork.

Unlike mammals, chickens do not have fur or hair, they have feathers. This and other features distinguish them from mammals. Although birds sometimes have setae on their heads and faces, this does not define them as mammals. However, they are warm-blooded, air-breathing, have a backbone, and share some other mammalian characteristics.

Chickens are also kept as pets like dogs and cats. They like to live in hierarchical and more or less cooperative groups and be cared for by roosters. Like most mammals, they are devoted parents. Interestingly, chicks are precocious, meaning they are ready to fend for themselves shortly after hatching. Precocious babies are unusual for mammals.

Still, the hen, like a mammal, tends to her chicks during the first few weeks of life. Not only do hens not produce milk, but they do not directly feed their young like other birds. Instead, she leads them to find food and water, and they help themselves.

Read more  Hamster Teeth: Everything You Need to Know
Are chickens mammals?

© iStock.com/Tuna


  • Chicken Teeth: Do chickens have teeth? – Everyone knows chickens have beaks, but do they have teeth? Click to know!
  • Can chickens fly? – Have you ever seen a chicken fly? can they Click to learn more!
  • Chicken Lifespan: How Long Do Chickens Live? – Ever wondered how long a chicken naturally lives? The truth may surprise you!


  • Saw an alligator biting an electric eel with 860 volts
  • The 15 Deepest Lakes in America
  • Watch rare coyotes and bobcats now

More from AZ Animals

featured image

Are chickens mammals?
Are chickens mammals?

© iStock.com/undefined Undefined

about the author

My name is Rebecca and I have been a professional freelancer for nearly ten years. I write SEO content and graphic design. When I'm not working, I'm obsessed with cats and pet mice.

FAQ (Frequently Asked Questions)

Are chickens endangered?

In general, chickens are the opposite of endangered. As a livestock species, there are billions of chickens in most parts of the world, many of them raised on factory farms. However, some breeds can be considered endangered. This is usually because farmers believe they are inferior in meat or egg production, or because they require too much maintenance to keep them healthy. Increasingly rare chicken breeds include:

  • white sultan
  • Silver Phoenix
  • Lakenveld
  • Salmon Favreore
  • Buckeye
  • Chantecler
  • Netherlands
  • red hat
  • Crevicole
  • White Yokohama

What is a chicken?

This bird is a subspecies of the red jungle fowl, Gallus gallus . The chicken's scientific name is Gallus gallus domesticus . A male red jungle fowl looks like a colorful domestic cockerel, while a hen looks more like a grouse. They are native to Southeast and South Asia.

What are they for?

Chickens are raised for their meat, which is high in protein and low in fat. They are also bred for laying eggs, as hens can lay many eggs without the help of roosters. Eggs are also delicious and nutritious. Fertilized eggs are used to study embryology. Chicken feathers, including the rooster's sickle tail, have been used to adorn hats and other apparel. Some people use roosters for cockfights, crowing contests, or religious ceremonies. Chickens are mentioned in many people's mythology and religion.

Read more  9 of the funniest animals in the world

How many breeds are there?

There are at least 500 chicken breeds worldwide, of which 53 large breeds and some bantam or small breeds are recognized by the American Poultry Association.

What is a Brood Hen?

Brood hens are hens that sit on the nest and basically don't want to move. She won't even move to eat, drink or bathe, and will get angry if someone tries to move her. She shows this by pecking or fluffing her feathers. Nest hens are great for brooding eggs, even eggs of different species like guinea hens or ducks.

When were chickens first domesticated?

Scientists believe chickens were first domesticated about 8,000 years ago, primarily for cockfighting. Later, people discovered that chickens and chicken eggs are delicious.

What types of chickens are there?

A chick is a chick, and a chick is just out of an egg. A cockerel is a cock under one year old, and a pullet is a hen under one year old. A hen is an adult hen, and a rooster or rooster is an adult rooster. Capons are roosters that have been neutered.

What are the parts of the chicken?

Chicken is a special looking animal. There is no other animal that looks like it, and most people can tell a chicken from every other bird. Here are some parts from head to toe:

  • Combs and thorns. The comb is the fleshy part of the top of the bird's head. Roosters have larger combs and come in many shapes. They are the cushion; the strawberry; the familiar single; the buttercup, which is a double single; the chevron; the rose and the pea. Chickens also have wattles under their beaks. The lobes, earlobes, and combs are collectively called the caruncle.
  • Hacking. Looking down, the mane is the neck feathers and they are very beautiful and elegant on the rooster.
  • cape. The cloak sits behind the neck.
  • saddle. The cloak moves down the back and then to the saddle, which is the feather before the tail. These soft feathers are often used to make fish flies.
  • sickle. Both hens and roosters have tail feathers, but many breeds of roosters also have sickles. These are those long sickle-shaped fathers that curve over the tail feathers.
  • fluff. These are the soft feathers on the bottom that hide the chicken's vent holes.
  • hock joint. This is the junction between the drumstick and drumstick.
  • handle. This is the part of the leg that is below the hock joint but above the chicken foot.
  • Stimulate. This is a keratin-covered bone that grows from the lower leg for defense. The spurs are very noticeable on the cock.
  • paws and toes. Chickens have four toes, each with a claw. The claws are not very sharp and are used for grasping the ground.
Read more  Fly Poo: Everything You Needed to Know

Are chickens omnivores, herbivores, or carnivores?

Since chickens eat seeds, grass, corn, insects, worms, small reptiles, and even small mice, they are considered omnivorous.

Are Chickens Dangerous?

Chickens are too small to be dangerous to adults, and humans have bred aggressiveness from most breeds. However, some roosters are known for being aggressive. Some, like those used for fighting cocks, were trained to be aggressive, and poultry farmers have stories of a rooster, or even a hen, whipping a human. A rooster named Weirdo has a reputation for violence. He killed at least two cats, cut off the fingertips of people who tried to pet him, destroyed camera lenses, pecked out a dog's eye, maimed his owner enough to require eight stitches, and His enclosure broke out in patricide and murdered his own son. Born in 1970, Weirdo weighed 23 pounds at his heaviest, several times the size of an average rooster.

Do chickens migrate?

Domestic chickens do not migrate. They don't have the instinct to migrate, of course, they just aren't allowed to. Its ancestor, the red jungle fowl, also doesn't migrate. Like the domestic chicken, it doesn't fly well and may only fly long enough to find roost. Its habitat is rich in food year-round and provides enough cover for the hens to protect their eggs.

How long can a chicken live?

Chickens live between 5 and 10 years, but lifespan depends on the breed. It is said that the oldest chicken lived to be 16 years old before dying of a heart attack.

Thanks for reading! Have some feedback for us? Contact the 10hunting.com editorial team.