Measurement of song variables. The left sonagram shows the frequency parameters and the right sonagram shows the time parameters

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Measurement of song variables. The left sonagram shows the frequency parameters and the right sonagram shows the time parameters

2021, 12(1): 54.

Taxonomic revision of the Savanna Nightjar (Caprimulgus affinis) complex based on vocalizations reveals three species .

Figures of the Article

Range map of Caprimulgus affinis (based on BirdLife International and Handbook of the Birds of the World 2017), indicating subspecies limits (sensu Cleere 1998). The taxa undulatus Mayr, 1944 and kasuidori Mayr, 1944 were included in C. a. affinis by Mees (2006) and Dickinson and Remsen (2013)
Measurement of song variables. The left sonagram shows the frequency parameters and the right sonagram shows the time parameters
PCA (left) and DFA (right) scatterplots of acoustic variables measured for songs of the Caprimulgus affinis complex (n = 86)
Sonagrams of songs of the monticolus-group, affinis-group and griseatus-group illustrating the differences among the three groups

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