Jays would be beautiful birds if only God had not given them the worst voices in the world and horrible personalities and behavior traits.
A few years ago while doing some field research, heard the oddest noise while walking by some species of hawthorn tree. It sounded like someone running a coin along the face of an old washboard. I looked around and it was a Blue Jay! It was an alarm call as I was too close to a nest in that tree. Got out my mirror and saw three nestlings.
From then on, checked on them from a distance using binoculars until the nestlings successfully fledged.
Heck of a good place build a nest - no chance of raccoons getting to the nestlings in that species of tree!