A group of chickens can be called by several collective nouns, with the most common being:

• Brood : Typically refers to a family group of chickens, especially young chicks raised together under a mother hen

• Flock : A general term for a group of chickens gathered together, commonly used for birds in general as well

• Clutch : Often used to describe a group of eggs laid by a hen at one time, but can also refer to young chickens hatched together

• Peep : A fanciful term used mainly for a group of baby chicks, named after the soft "peep" sounds they make

• Herd : Sometimes used to describe a mixed-age group of chickens living together, emphasizing the social structure within the group

In summary, the most widely accepted terms are brood for a family group, flock for a general group, and peep for young chicks