Unlike the North American yellow warblers, females in Galápagos commonly sing and duet with their paired partners. Here, we tested possible functions with a playback experiment: www.biorxiv.org/content/10.1...
Unlike the North American yellow warblers, females in Galápagos commonly sing and duet with their paired partners. Here, we tested possible functions with a playback experiment: www.biorxiv.org/content/10.1...