Crowing hen

I have a slight problem. Poppy, my lovely black chicken has a habit of crowing. Our neighbour did think at one time that we had a cockerel but we have explained that it was a chicken. They are ok at the moment, but she was in full voice at 7.30 this morning. I know that they are fairly early risers next door but it must be a bit annoying.
Why does a chicken crow like a cockerel? Is it age related?
She does it for attention but why does the have to crow. They have had the freedom of the garden all weekend and she was expecting the same today. Is there anything we can do to stop it?

That's very interesting. Poppy used to lay every day but seems to have stopped in the last week or so, which is surprising because her comb is bright red. She is looking very healthy and has always been the boss without being bossy. We had the three of them from a flock with a cockerel. I always thought that she seemed to assume the status of the cockerel that they must have missed.
She was poorly for a long while in August, when she had what I can only assume was an accident which made her unable to stand up for at least a fortnight. By December she was back to her old self and was laying every day. She could have damaged her ovary then but she was crowing before then though.
I dont mind as long as the chap next door is fine with her crowing at such an early time.
It would be nice to know why though.

The only thing I can suggest is make the coop a black out coop cover all cracks. She will crow when it is dawn and dawn is getting earlier!!!

Do not for get that chickens do need plenty of ventilation and not a draft.

Fortunately she only crows when she's out. She's quiet in the coop. We leave for work at 7.30 every morning so it will not get any earlier in the Summer.
Thanks for your replies. I'll have to have a chat with my neighbour and give him some eggs to keep him on side.

I have a very noisy hen that says "Cluck, cluck, cluck SQUAWCK!" shrilly, and often. 

 

Not too sure of Poppy's age but I think she's getting on a bit. Having said that, she's looking better that ever, with a glossy coat and bright red comb and wattles.
By the way New shoot, those are lovely looking hens. What are they?