No, they're called Fowl.
they are called pullets and rooster chicks are called cockerels
Old chickens are called hens or stewing hens. These are chickens that no longer produce eggs. Their muscles are tough and need to be stewed a long time to become a delicious treat. They make good chicken soup.
rooster
no. they will lay without a rooster
A good ratio is 1 rooster for every 15 hens. Many farms keep more hens than that and only one rooster, but that keeps him very busy.
Female adult females are called hens. A male is a rooster or cock.
Personally, after raising chickens of all types for 35 years, my hens look like hens. However, some of my roosters also look like hens. Not only can there be delayed feathering in a rooster, but genetically there is a condition called "hen feathered rooster". In delayed feathering, the rooster pattern will occur eventually. In the genetic condition, you know you've got a "hen feathered rooster" when he starts mounting the hens and exposes the penis during a "cloacal kiss".
Yes, a rooster will be happier with hens around.
Yes, a rooster is a male chicken. Hens are female.
usually the ratio of hens to rooster is about 15 hens for every rooster. If you keep them separated an extra rooster is not a problem but in a flock of 24 hens,you will have some squabbling between the dominant rooster and the #2 .
Nope.
No. Chickens will lay perfectly good eggs without a rooster. In fact, many people prefer not to keep a rooster, because they don't want to find a fertilized egg that was a little too far along.