What to do when they build a city on your back?

So, I'm waking up after a quick nap, just a thousand years or so, and I find that while I was asleep, the humans built a city on my back. I like humans in general--they're small and soft and cute. It's funny when they try to build things. But this time they built a city on me! I normally want to stretch out my wings, fly around a bit, and maybe get something to eat after a nap like this, but if I did that, the city they'd built would get destroyed. What to do? I don't like knocking down something someone else built, but I can't stay like this forever!