Regular Guys and you can Bizarre Ladies: Sounds and you will Singing Habits regarding a tropical, Duetting Oriole from the Breeding and you can Non-Breeding Seasons
We compared male and female singing cost and you will track design in a tropical “” new world “” oriole, the latest Venezuelan troupial (Icterus icterus) throughout both the breeding and you can low-reproduction season and you can within start and you can big date. Men carried out solos at such as for instance highest cost from inside the reproduction season before beginning.