This is about the jumping bird that looks in the window at me every day. Well, I have windows in my room that are tall, so I don't bother putting fabric across the very top of them. I use fabric from the fabric store for my curtains (not sewn or anything) so I can make handkerchiefs with them when I want a change. Every day, a little sparrow or wren lands on the top windowsill outside but is too small to peer over the sill. So she JUMPS and JUMPS so that she can look in on me. It is rather like seeing a bird on a trampoline, with it's head coming up so you can see it. She does this 5 or 6 times, then flies into the gutter where I think it must have a nest as there is an overhang. I couldn't believe my eyes the first time this happened. Now it happens every year at nesting time.