Spectrogram of Black-Throated Green Warbler Type A song


Here is the Type A song of the Black-Throated Green warbler. Used for Intrasexual functions between male warblers, it is primarily associated with territory defence.

Spectrogram of Black-Throated Green Warbler Type B song


Here is the Type B song of the Black-Throated Green warbler. Used for intersexual functions, between a male and female warbler, the type B song is used to for mate attraction and pair-bond maintenance.