A hen sits on and hatches a clutch of eggs; when they are hatched they are simply a flock.
A group of eggs/chicks laid or hatched together is often referred to as a "hatch", "brood" or "clutch".
a number of young hatched at one time, a family of young, is known as a Brood
There is no specific number of chicks born each year as it varies depending on factors such as breeding habits and population dynamics across different bird species. Globally, millions of chicks are hatched annually from various species of birds.
No. all chicks do not start out yellow. The chicks you see in advertising pictures and in magazines are photographed more often for a number of reasons. The yellow balls of fluff are cuter than a mottled brown/ white or all black chick. More distinguishable as the "chick" the general public expects to see. The majority of chicks hatched in spring (Easter) by hatcheries are of a certain breed (a cross between a Plymouth rock and a leghorn) and usually used for meat production. A bit ironic that the advertising media has chosen the cute photogenic chick with the shortest lifespan for an icon.
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A group of chickens is called a flock.AdditionallyA group of chicks is sometimes called a PEEP.More InformationA group of birds of any species is generically known collectively as a flock. For a number of individual birds, there exist poetic collective nouns particular to the type of bird referred to. Many of these collective nouns are fanciful, and not in common use in English.For chickens: A peep (Poetic) refers to the sound chicks make as they emerge from the shell during hatch, called peeping. The collective noun peep is most commonly used when referring to the chicks in a brooder. Also used is a clutch (fanciful) for the way they group together when alarmed.Older chickens in a group such as pullets or hens are a flock.A group of hens sitting on eggs are a brood.
Mixed number
The group is called a "herd".
Called a flock.
A herd
A Pod.
rooster