Thanks HillFooter. I've read the link with great interest and have come to the conclusion that Agatha is simply a stroppy chicken! Nutrition isn't an issue as I'm feeding them Exbat crumbs. The only other thing I'm doing is giving them a little corn in the afternoon which they are all now taking (including Agatha) from my hand. Oh, I lie! I've also been hand feeding Nancy worms, in a Classical/bunches of grapes stylie..Only because they're all so cute and follow me round the garden
I'm thinking about the husbandry issue, and whilst they do have the run of the garden - which is big and interesting (and I've also tied a cabbage from the children's monkey bars) - I'm worried about leaving them confined in their run when we go off for the occasional weekend. I've 3 chickens, and they're run is 9 foot by 6. Agatha seems to be absolutely fine when they're out in the open, and the 3 of them sort of hang about together (although the other 2 seem 'closer'). The problem seems to be when they're conined. For example, Agatha goes to roost first, but will stay by the pop hole so the Daphne and Nancy have to literally wait for her to let them in. Incidentally, the other 2 have started sleeping in the nest box
The only other time she'll have a go at them is when for example, I've had to lift her off my asparagus bed, and she feels I've embarassed her..
Fingers crossed they're all happy enough together. Like I say, I think Agatha is simply bossy