Journal of Hebei University (Natural Science Edition) ›› 2018, Vol. 38 ›› Issue (1): 83-88.DOI: 10.3969/j.issn.1000-1565.2018.01.013

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Correlation of beak morphology and song features in Dusky Warbler(Phylloscopus fuscatus)

WANG Jiaojiao1, LIU Jianping2, LIU Bingyang1, HOU Jianhua1   

  1. 1.College of Life Sciences, Hebei University, Baoding 071002, China; 2.College of Life Science, Hainan Normal University, Haikou 571158, China
  • Received:2017-09-30 Online:2018-01-25 Published:2018-01-25

Abstract: To study the relationship between beak morphology and sound frequency, from 5 July to 10 August 2015, we recorded 33 dusky warbler(Phylloscopus fuscatus)songs between 5:00 a.m. and 10:00 a.m. in fine days(no wind, no rain)in the breeding season. The beak morphology parameters and the sound characteristics were measured. The results showed that: there was no relationship between high frequency, low frequency, max frequency and bandwidth of songs and culmen or beak gape; culmen was found to correlate negatively with low frequency of trill, however, there was no correlation between the culmen and high frequency, the max frequency or the bandwidth; beak gape was not significantly related to the trill traits. The results of this study demonstrate that culmen can provide information about the low frequency of trill, and vocal tract can affect the characteristics of sound.

Key words: dusky warbler, beak morphology, song features

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