I was just outside on the deck when I heard a birdsong I haven’t noticed hearing before. The bird was apparently in our black walnut and the foliage is too thick to see the bird.
The song went something like: cheeer cheeer wup wup wup wibwibwibwibwibwibib
That’s funny - I’ve been watching a cardinal in our yard all day today (and can hear him singing right now), so as soon as I saw your description thought “Ooh I know! I know! Cardinal! Cardinal!”