We had a little nest in one of the spruces on the north side of our house. I think they were bluebirds, which Marek showed me a few weeks back, chirping away and hoping for mom to return with some food.

Now the nest is empty, and has been since just a few days later . . . too little time for them to fledge. Damn.

The nest was still perfect, so I'm thinking perhaps a snake, or a larger bird.