Birds lay eggs, while most mammals give birth to live offspring. Birds lay eggs, while most mammals give birth to live young and nurse them with their mammary glands. No. Chickens like all other birds lay the egg and are covered with feathers. It is a bird and all birds are considered animals. We will discuss in depth that’s why chickens are birds by comparing the characteristics of chicken with mammals and reptiles to get a better understanding. The only mammals that do not possess any hair are dolphins and whales. The chicken is perhaps the most widely domesticated fowl, raised worldwide for its meat and eggs. Chickens are birds, yes you read it right!

The only exceptions to this are the platypus and echidna, which are monotremes, or egg-laying mammals.

Keeping in mind all the above-given information, it is quite evident that chickens are birds and not a mammal. Living things fit into several kingdoms. The most familiar to people are the plant and animal kingdoms.

For a long time now people have been confused and searching for the answer to this question that is chickens mammals or reptiles or birds. Not just that, mammals have mammary glands that chickens do not have. Chicken, ( Gallus gallus ), any of more than 60 breeds of medium-sized poultry that are primarily descended from the wild red jungle fowl ( Gallus gallus, family Phasianidae, order Galliformes) of India. Chickens are birds, which is a different group of vertebrates from mammals. Chickens are birds, which are a different group of vertebrates from mammals.