we did 3177 playback experiments on 264 species of birds to learn why males alone defend territories in some species while pairs team up to cooperatively defend home turf in others.
and now you can read about it with writing that is fun
theconversation.com/its-a-sing-o...
theconversation.com
Males aren’t the only angry birds defending their territory. A clever test finds which songbirds step up to fight off intruders and the role monogamy plays.
