Cyril Burleigh, The Hilltop Boys on Lost Island
“ Jack had his way, for Percival had confidence in him and at length the boy paused and said:"Listen, Dick! There are the parrots again. They won't talk if it is dark and all we have to do is to follow the sound and we will shortly come out into the light.""I guess you're right," laughed the other. "I know we always used to cover our bird with a dark cloth when it got to chattering too much, and it stopped in an instant. But I don't hear them.""Listen!" said Jack, pressing forward by the light of his pocket torch."I hear them now," said Percival. "They are using as bad language as ever. ”
