Movin' on up, up, up

The guineas are at this age where they just get into trouble all day.They're falling in the drink, getting stuck in or under stuff, and practicing perching anywhere they can.  I get called outside frequently by the panicked shrieks of the mortally assailed, and I find chicks...How did it get in there?  Last year I planted a highbush blueberry and set a cage over it so the chickens didn´t uproot it through their vigourous appreciation of mulch.I routinely found wailing chicks "trapped" in the chickery until I set it up on its side.  Now it´s a perch.They've got that guinea vase shape and they´re starting to turn speckled from striped, but they're still brown.Then I was brought outside at dusk by some particularly sustained alarm calling.To find this:The chicks were getting up on the greenhouse.  And they were really nervous about it, making  a lot of consternation noises.It started with the grownups.  They started inching up onto the greenhouse from the sky coop while mama was sitting with her brood on the perches.A couple of days ago, they started roosting on the peak.Not to be outdone, the chicks just decided that's the place to sleep now.First they flap up to the arch from the coop Then they scoot up until they gain the peakA few of them are content to stay on the coop, which I think is smart, but I'm sure they'll be leveled up in no time.I have a theory that this started with the weather vane.  If that bird can get up there, then so can we.Their additions are not very attractive.  They're adding a lot of nitrogen now to the water I'm catching off the greenhouse. No, they don't puncture the plastic.  It's tight at night in the cold.  It makes loud rumbling as they all scurry back and forth across it.What's funny, is that there's not much space at the top.  It´s kind of a one way street.  Yet they insist on going back and forth, and when they pass each other....If anyone gets more than a few inches from the center, they start to slip, then run in place, flapping, and either they regain the summit or abort, and push off to fly to the ground and then begin the quest again. Eventually they line up like beads for the night.  It looks like an owl buffet to me, but I don't have any ideas how to stop them.