I live in Western Pennsylvania. I heard a bird sound that I have never heard before over the course of 5 to 10 minutes. It sounded like "Beep Boop". I did NOT see the bird but was able to grab a quick recording. I posted the sound file in the link below.
It sounds like "BEEP BOOP". it would do one round of that sound then stop for a duration (30 seconds to 2 minutes). It moved around in tall trees (at first it was from my position south east then moved to north west trees). I have not heard it again since then and any person I sent the recording to has no idea.