It's 6 A.M. this morning and I'm trying to wake up. I hear a cell phone ring, four short high pitch staccato electronic brust. I get up and check the phone, because the kids like to play the amusing game of "Change the style of the phone ring". It goes off again... again ... and again. The answering machine doesn't pick up. I check the phone again. The ring is coming from outside. IT'S A BIRD! A bird imitating the ring of a cell phone, and another bird answers! So this is a Starling or a Mockingbird.