Wooden Birds in a Room

We're drawn into the room by the sight of eagles and seagulls trying to get into a birdhouse near the roof. It's a large room, painted blue like the sky, and the ceiling is perhaps 50 or 100 feet away. Staggered at different levels are all sorts of various apparatus, people working them, it's like a hands on science-museum of sorts, I'm guessing the people are somehow controlling the birds, and as I'm watching them flying everywhere about the room (surprisingly few collisions) one hits my elbow - ouch! - they have some weight, wooden, and a small bird, painted to resemble a hummingbird, comes and tugs at my sleeve, it has something to show me. And I begin to climb the various levels of the room, we'll get to the top and investigate things on the way down, but there aren't always stairs, or I've missed them, and as I'm standing on a short stool grabbing another stool to pull myself up a level the stool I'm grabbing onto begins to slide, I realize the bird has let go my sleeve and I've missed the easy stairs up, I get down to try again...