Oriental Bird Images
 

 
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Taiwan Wren Babbler Pnoepyga formosana   - Sonogram
Taiwan Wren Babbler
Photographer : © Amar-Singh HSS
Location :Daxueshan National Forest Recreation Area, Taichung City County, Taiwan
Date : 15 January 2019
English synonyms:Taiwan Wren-babbler, Taiwan Cupwing
Bird Family :Timaliidae - Babblers, Babaxes, Mesia, Leiothrix, Cutias, Barwings, Minlas, Fulvettas, Crociases, Sibias, Yuhinas, Myzornis, Parrotbills & Rhabdornises
Bird Group :PASSERIFORMES
Red Data Status :Least Concern
Remarks :This Taiwan endemic of high montane forest is a tiny, fast moving bird, usually in the dark undergrowth; making for challenging observations. HBW 2019 describes both a dark and a pale morph but I am not able to find similar descriptions in other references. I managed to record the song and an edited recording is here: https://soundcloud.com/amar-singh-hss/taiwan-wren-babbler-calls-3-1-daxueshan-national-forest-recreation-area-taichung-city-county-taiwan-17th-january-2018 Brazil (2009) rightly describes the song has having a first note separated from the rest this is heard well when you record and play back the song but can be missed in the field. The song comprises 6 notes. The first note that starts off the song is not well seen on the sonogram but clear on the waveform. It is followed by a rapid sequence of 5 notes that have both a high frequency and low frequency sound (quite complex). The song last approximately 1 to 1.2 second and is repeated 6-26 seconds apart (spacing 13, 18, 26, 13, 10, 9, 6, 9 seconds recorded).
-Amar
Taxonomic Notes :Monotypic species endemic to Taiwan.
Formerly considered conspecific with Scaly-breasted Wren Babbler Pnoepyga albiventer but now treated as a separate species following Collar, N. J. (2006) A partial revision of the Asian babblers (Timaliidae). Forktail 22: 85-112.