Escapee chicken!

it's ok to clip their wings but remember to only do one wing (this will unbalance them) and after their moult clip the other side to ensure their muscles stay even. Even with clipped wings some chickens can still fly a little and also launch themselves off their coops or anything else. To be extra sure they don't escape the only real way is to put a roof on their run 

I clip the feathers each side of the central quill along the feather. Less stressful if you're worried abut hurting the bird and they don't look too mutilated when they're folded up.

Clip through the feathery bits on the first big feathers so the quills are still intact -  it doesn'yt have to be neat. Literally a 10 second job. When she folds her wing back you won't notice and you can forget about horror stories about bleeding to death and all that.

I found a video clip on you tube which show someone clipping a wing which made it look vert straightforward.  In the end I didn't need to do mine because they are so spoiled they dont try and go anywhere!

Must admit I was a bit scared to clip in case I hit the vein at the base of the feather next the body, but a good tip I heard is that wing clipping is a 3 man job if you've never done it before: one to hold the bird, one to hold the wing and one to cut the feathers! It's a fool-proof way to avoid accidents and the bird is much calmer if it's properly restrained. My Buff Orpington pullets can fly even though I read that orpingtons can't!