1 GV song(s) all songs have slow trill, 4 GV song(s) , 2 GV call(s) , 1 GV song(s) , 5 GV call(s) , 2 GV song(s) , 2 GV call(s) , 1 GV song(s) , 7 GV call(s) , 1 GV song(s) , 10 GV call(s) , 1 GV song(s) , 2 GV call(s) calls increased as bird approached, flew at end