My BOs just want to be as high up as possible and by the window. They can't really jump up much more than 2 or 3 feet at a time but had worked out how to get up into the rafters, so I had to block off the ceiling since I was afraid they'd break a leg coming down (I've read that heavy breeds like BO might do that if they roost too high up).
(mine never walk down, they always just jump. I can hear them saying GERONIMO!!)
I made them a roost by the window about 4 1/2 to 5 feet high, and they can work their way up easily. But they didn't like it at first. I did what LaurelRidgeDreams did. I set them on it. They didn't get as upset as hers did but they were not happy about it. Soon, however, they were up there on their own and spend every night up there.