Fig. 1From: Rutting vocal display in male impala (Aepyceros melampus) and overlap with alarm contextSpectrogram of the bout of male impala rutting calls. (R) roars, (S) snorts. The spectrogram was created with a Hamming window; 22,050 Hz sampling rate; FFT 1024 points; frame 50%; and overlap 87.5%. The audio file of these calls is available as Additional file 2: Audio S2Back to article page