FIGURE­­ 2. Call measurements: 1) number of frequency peaks; 2) maximum frequency; 3) rising or falling call; 4) start frequency; 5) amplitude of the largest modulation; 6) duration up to the largest modulation; 7) minimum frequency; 8) end frequency; 9) call duration. in --Molecular--and--acoustic--evidence--support--the--species--status--of--Anthus rubescens rubescens and--Anthus [rubescens] japonicus--(Passeriformes:--Motacillidae)

FIGURE­­ 2. Call measurements: 1) number of frequency peaks; 2) maximum frequency; 3) rising or falling call; 4) start frequency; 5) amplitude of the largest modulation; 6) duration up to the largest modulation; 7) minimum frequency; 8) end frequency; 9) call duration.