The other day I was out in the yard cleaning up after the snow melted. I had been hearing Blue Jays screeching, but it took awhile for it to really penetrate my brain that they weren’t stopping, but getting louder and more localized. I looked up in my neighbors spruce tree and saw about a half a dozen Jays there. Grabbed my camera and went to the spruce, stuck my head in at least 3 different spots around the tree, looking up to see what was causing the jays dismay. Nothing.. until I stepped back from the tree and looked up. A large, disgruntled Great-horned Owl stared back at me.
The Jays were satisfied somebody knew. They left.