A bluejay made a next right next to the front door of my house. Normally, this is not a good thing as people enter and exit through the door. At first, the bluejay flew off any time the door was opened, but eventually began to trust people and laid four eggs in the next. They recently hatched and here are the birds.
To tell you how intelligent birds can be, I left the kitchen light on one evening (near the nest) and went to my bedroom (far from the nest). I heard some scratching outside my bedroom window a few minutes later and thought it was a wild animal (we live in the hills). It turns out it was the mother bird bugging me to turn out the light! All I thought was that old Tweety Bird war cartoon where he yells, "Turn out that light!"