Haha!   
 
 
I can understand it with ex batts, but mine come from a chicken breeder and she has perches in all her coops.  I wonder if my Bluebell hen is being a bit of a bully.  She is a bit agressive at times  
 
 
Mind you, the other day she got her just deserts as she decide to go for the buffs when they were free to roam the garden and the two (friendly) heavyweights ganged up on her and gave her what for.  She ended up with a bit of a bloody comb.  
 
 
For the first time, my unfriendly Bluebelle, actually allowed me to pick her up and hold her!  The Warren, of course is always friendly.  
I will give them all a chance to settle in first then I might contact the breeder to see if hers always roost on a perch.