Song: Prolonged series of often rapid, metallic "tick" notes, like the sound of two pebbles being struck together, usually in the pattern "tick-tick, tick-tick-tick". Easily imitated with two pebbles or by firmly holding a coin on edge between thumb and forefinger of one hand and sharply striking its flat surface with another coin.
Sound: Monty Brigham (Bird Sounds of Canada); 1977 May 9; Canada, Ontario; Richmond Fen; Adult; Primary Sound;