Fig. 4From: Species delimitation in the White-faced Cuckoo-dove (Turacoena manadensis) based on bioacoustic data Boxplots of the five vocal parameters that indicated substantial differences between the satellite and nominate groups. Satellite group: TBU and PEL; nominate group: SUL and TOG. Error bars denote the interquartile range (25–75th percentiles)Back to article page