I have lots of experience with chickens but only production breeds. I have never had decorative breeds before so I know nothing about these SIlkies I bought. They have me confused. I put them in a dog crate to keep them isolated for awhile. At the back of the crate I put a roost about 22 off the floor and a dropping board under it at about 16 off the floor. I put a plastic pan under the board to use as a nest. They wont use the roost. Are they not able to get that high or do they not want to use it? I even put them up there and they stayed for awhile and then hopped down after about 15 minutes. Should I make a ladder? Here is a picture, you can see the board and a little bit of the roost above them. Oh, and how do I tell the roos from the hens? Without combs and wattles I am lost here.