Sounds like she's got you trained well already! Like I said, seems to be one in every flock, and as long as you're sure she's not in any true distress, I wouldn't worry. Hope the feather duster works for you!
Seems like there's always one in every bunch who wants to train us to do things his/her way! Silly chickens! I don't know what kind of brooder set up you have (pictures always help) but if you are using a heat lamp check to make sure it's not too hot in the brooder. I know, it seems like if...