Vocal Communication in Androgynous Territorial Defense by Migratory Birds

<table>Territorial call note of an Acadian flycatcher (<i>Empidonax virescens</i>) from Panama showing the chevron-shape characteristic of barks. Note the “mossy” appearance due to reverberations arriving at the microphone slightly later than the directly transmitting sound.</table>

International Scholarly Research Notices

fig1

Figure 1

Figure 1: Vocal Communication in Androgynous Territorial Defense by Migratory Birds 