Fig S5. Humpback whale songs delineated

Fig S5. A spectrographic view of a 10 minute song recording. A spectrographic view of a 10 minute recording where phrase sequences from at least 3 different singers have been recorded. Each singer has an assigned color, with a single phrase identified using both a colored box and a corresponding colored phrase label (singer A = red, singer B = green, singer C = blue, singer D = black). Arrows between phrase labels indicate a transitional phrase. Singer B’s signal attenuates at the beginning of the recording and because it is not certain if singer D is the same singer, a new label is assigned. At least 3 songs overlapped at time periods within the recording, indicating that a minimum of 3 singers were singing within the detection range of the EARs during this recording. A full song sequence captured from singer A, measured from phrase-14a to phrase-14a, lasted approximately 8 minutes and 50 seconds.