Excited scream!! Anyone elses girls do this?

Hi All,
I have three very spoilt girls 2xmarans 1x copper star and they get many treats through out the day but my copper star has decided to start screaming with her beak wide open its as I walk towards them with a treat it makes me laff  I only wish I could get some footage of this behaviour and to think she was the quietest of the three does anyone else's chucks do this I think they are comical things     

Hi Barley,
Very excited indeed as whilst having a dust bath this afternoon and didn't move  she sounded like a cat crying/screaming when I approached with a bunch of grapes for them she seems to be getting louder in her excitement  The wife reckons "in her words" its because they lead such sad lives what else have they got in life except grub What does she know eh I think its because she is jealous because they love me so much   

One of my four girls does the same when i come in from work and take my bike round the back of the house. I also have one that stands in the way so much i have to put her on the handlebars and push her to the shed