I've been wondering whether I've been hearing a mockingbird calling from 
across the field in back of my property, but with several catbirds in 
residence, I wasn't sure and hadn't had a chance to go investigate more 
closely.  In the four years I've been here, I've never seen or heard one 
in the area.  But just now, a handsome mocker flew into one of the 
shrubs near my house.  Hurray!