LAhighweewoo {IDmeasurer}

Yellow-breasted boubou, Laniarius atroflavus - spectrum properties

Description

• Species: Yellow-breasted boubou, Laniarius atroflavus

• Number of individuals: 33

• Number of calls per individual: 10

• Number of acoustic variables: 6

• Individual identity: HS=3.83

• Reference: Osiejuk, unpublished data

Male Yellow-breasted boubous were recorded in Bamenda region in Cameroon. Birds were recorded between 06.00 to 10.00 in the morning in 2016, typically, from the distance of 10 - 20 meters. The calls were recorded after short provocation with playback. Repertoire of males at the field site included three distinct call types and only the most common call typed labeled as “High wee woo” was used for this study. The original dataset comprised 33 individuals and 10 calls per individual.

Variables were selected to measure basic spectral parameters of each “high weewoo” call like the peak frequency, distribution of frequency amplitudes within spectrum, and range of the frequencies (minimum and maximum). Additionally, the duration of the call was measured. Variables were extracted in Raven Pro 1.5 by the Cornell Bioacoustic Research Program.

Usage

LAhighweewoo

Format

A data frame with 330 rows and 7 variables:

id

factor, identity code of an individual emitting the call

dur

duration of the call, in seconds

df

frequency of maximum amplitude within the spectrum - peak frequency, in Hertz

minf, maxf

minimum and maximum fequency at -25dB relative to the call peak amplitude, in Hertz

q25, q75

frequencies at the two quartiles of amplitude distribution; frequencies below which lie 25 and 75 percent of the energy of the call, respectively, in Hertz

Source

Osiejuk, unpublished data