Plot showing the separation of whistle calls of individual dholes, with fundamental frequency against cycle duration (time from start of one syllable to start of the next).
Symbols represent the whistles of individual dholes:
M1 (plus), M2 (solid square), F1 (open square), M3 (solid circle; group of 3 visually indistinguishable juvenile males), F2 (open circle), M4 (open triangle) M5 (star).