All roosters crow.
But the crowing IS NOT what fertilizes the eggs. They are fertilized when the male mates with the female.
No, the platypus does not fertilise its eggs externally.
No, Bantam roosters do not take care of eggs, his job is to fertilize those eggs, guard the chickens from predators, and crow.
A rooster is never too old to crow, he just might not do it as often.
eggs to fertilise and sperm to fertilise it
Yes. When a rooster is killed, or dies of natural causes, it will no longer crow. You're welcome.
with their bum
A chicken will cluck and a rooster will crow. The sound made by a rooster is often louder and more distinct than the sound made by a chicken.
No, if you just want eggs to eat you do not need a rooster. If you want to hatch chicks, you would require a male.
Roosters don't get the hen pregnant but fertilise the eggs inside her. Chickens are born not from a Mother hen but come from the eggs she lays. The egg fertilisation process takes place when the rooster "Mounts" the hen.
Tape his beak
If the rooster was around a week before the eggs were laid then, yes, they can be hatched. But if there has never been a rooster around then, sorry, there can't be any chicks. You can buy already fertilized eggs for chickens to sit on and hatch even if you don't have a rooster.
15 eggs None, a rooster cannot lay eggs (a rooster is a male)