Para evitar que lo ataquen mientras duerme, las dos cabezas alternan turnos de vigilia. Solo en contadas ocasiones se ve a ambas durmiendo al unísono, tal vez cuando se siente completamente a salvo.
To keep itself from being attacked while asleep, Doduo’s two heads take turns staying awake. You’ll only see both heads asleep together very rarely - perhaps only when Doduo feels completely safe.