Chickens are domesticated birds raised for their meat and eggs They are one of the most common livestock around the world and are found on farms in nearly every country Chickens come in various breeds each with unique characteristics such as size color and egg production abilities They are social animals that live in flocks and communicate through sounds and body language Chickens are omnivores eating a variety of food including grains insects and small plants They have a significant role in agriculture and are a primary food source for people worldwide