There shouldn't be a problem as long as the number roosters is not to large. The average ratio is one rooster for every four to six hens. If there are any more roosters than this they can cause damage to the hens.
Roosters- or cockerels, as we call them in Britain- are essential to mate with hens in order to enable the hens to produce eggs. They also serve to protect the female brood from intruders, be these other cockerels or different animals altogether.
From the time they are day old chicks. There is no reason why they should be separate but many to keep them together. They will establish a pecking order very early, before they can do much damage to each other, the roosters do not usually get too involved in this and will let the hens work it out. The roosters will "bond" until mating becomes an issue then some culling may be needed. Culling does not always mean killing the excess rooster population. Selling the un-needed roosters at auction or local 4H club is always a good option. If you have purchased sexed chicks (all hens) and are adding to the mix late then 4 months is a good benchmark, it gives the hens time to get to know the newcomer.
Roosters have a SPUR. Hens do not grow spurs. Spurs show at about 8 months old and older.
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.
It is natural for cockerels to crow, they start practicing at about 4 months old. Crowing is communication. Roosters use it for a variety of reasons. They call to the hens to warn them of danger, to lead them back home and to reassure them he is on duty. He also uses his crow to challenge other roosters.
We have the same problem. We have tw roosters and 28 hens. They are the White Leghorns. Generally the roosters take turns crowing. Lately the flock has been molting...it looks like snow in our coop. The roosters are not crowing. I have looked for an answer as you have. Interesting we both have the same problem. It looks like molting may have something to do with them not crowing.
At his funeral, or when he can't chase and catch the hens.
Chances are very good. The birds must be the right age, not too young and not too old. Hens start to lay eggs anytime after about 5 months depending on breed but they will resist the attentions of a rooster up to about 10 months old. Roosters can start to mate at about 7 or 8 months old but are not usually practiced at it until they are over the first year of age. If they are newly together, give them a chance to establish a pecking order and then expect fertilized eggs.
most roosters get their combs at about six months old.
Hens will start allowing the rooster to mount at about 6 months old or so. Some pullets do not accept the roosters advances until later but eventually she will. Once your hen starts to lay eggs the rooster will be interested.
A cockerel will usually start to practice crowing at about 5 months old or sooner, especially if the alpha rooster is vocal. The young roosters often mimic the boss bird and answer to his calls.
Bantam roosters can start mating as early as 4-5 months old, but it is recommended to wait until they are at least 6-8 months old to ensure they are fully mature physically and mentally. Early mating may affect their growth and development negatively.