Not until they are about 6 months old. At this time the cockerel will start to practice crowing and is often more vocal in play.
Roosters make this noise to calm and reassure the hen all is right with the flock. Roosters have many ways to communicate with the hens such as crowing, which is a call to other roosters to let them know he is guarding the flock or to let the hens who have wandered away from the flock to come back.
They eggs are the same size as if there is no rooster in the flock.
When there is no rooster among the hens one hen will usually try to take over the job of a rooster in so much as being a guardian. She will watch for danger and call to the hens to alert them. Sometimes even when there is a rooster, the dominant hen will mimic the crowing (or at least attempt to crow). She may even joust with the rooster, facing off with him and mock fighting.
Not typically. Any breed of hen can make a crowing sound but it is often done by hens in a flock that has no rooster. The alpha hen in a flock of chickens without a rooster will often take over the "guard" duties of a rooster.
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.
No, not all hens cackle while laying.
No, only if you want fertile eggs. The hens will lay without a rooster.
Yes. Roosters have many different vocal sounds. A reassuring clucking sound is common for roosters to make.
Not usually, but they can make sounds very similar sometimes. When there is no rooster with a flock it is possible for the dominant hen to make a call somewhat like a rooster. It is always less forceful, more hesitant and of less duration than an actual rooster.
Actually it is the rooster that crows, the hens sometimes make attempts to mimic the rooster but it comes out as a cackle. The reason the rooster crows is to communicate. He will crow to announce to the world that he is on guard and watching over his flock, he crows to let his hens (and other roosters hens) where he is and how to find him. They crow to warn of danger when a predator is spotted. He will crow in response to a hen announcing she has laid an egg. They often crow just to tell the world they are doing what roosters do.
There are a few reasons this happen. There may not be enough room in the roost. The hens are picking feathers to make the rooster move away and make room for themselves. The rooster may have a slight injury and when blood is visible the chickens will peck at that spot. In addition, the hens may be attempting dominance, this is called the "pecking order" and is practiced in all flocks. Roosters are not exempt from this practice. The males may dominate the flock sexually but the hens rule the roost.
so then they can make love with there babies and be like Emily