Calls
- "Pweee" call (harsher)
January 1985
- "Pweee" call (softer)
October 1965
- "Chip" call
Massachusetts July 1985
- Twittering calls
Maryland June 1997
Courtesy of Macaulay Library
© Cornell Lab of Ornithology.
Song is a slurred whistled "pee-ah-wee," rising on last note. Also a downslurred "wee-ur."