my chicken cant seem to stay on the roost

[chicken farmer8]

at night for the last couple of night one of my sex link hens will fall of the roost and hit the ground with a thud is this just a clumsy chicken or is it something she ate making her sick i have caught her before but i don't know what she would have ate in the pen please help

 

[Odelia]

I have never had a bird just fall off her roost. I would suspect that she is ill. Though it may not be something she ate. Are there any other symptoms?

 

[chicken farmer8]

not really she acts fine other than falling off the roost she dust baths with the others and runs around just like normal its just at night she acts like that