56 s of calling song, male from Pima County, Ariz., 25.0°C. Dominant frequency -- kHz. Recording by D.B. Weissman (S11-96, R11-147). Click on sound bar to hear entire recording.
This spectrogram is a 10 s excerpt of the 56 s audio file accessible above. The excerpt begins at 21 s.
Sound spectogram showing first 2 chirps of 10 s sample above.
