Chestnut-winged Babbler – calls and call-display

posted in: Morphology-Develop., Vocalisation | 0

WingedBabblerCh-iridescent patch [AmarSingh] 1

“Another shy babbler, the Chestnut-winged Babbler (Stachyris erythroptera bicolor) that was easy to watch at RDC (above). We had close naked eye views for 6-7 minutes with many calls and call-displays.

WingedBabblerCh-iridescent patch [AmarSingh] 3

“It follows the classical babbler feeding pattern of meticulously exploring dead leaves and vegetation hanging on trees and bushes; often poking the head in to look for insects and invertebrates in acrobatic postures (above, below). Generally very accommodating of our presence.

WingedBabblerCh-iridescent patch [AmarSingh] 4

“As can be seen from images, S. e. bicolor has a much dark grey-black crown, nape, and upper breast. Males are said to have more prominent blue patches at the side of the throat (Phillipps 2014) (below).

WingedBabblerCh-iridescent patch [AmarSingh] 2

“The babbler was calling frequently while we watched. It was alone and I did not see a mate or hear a response (could have been softly in the distance).

WingedBabblerCh-iridescent patch [AmarSingh] 6

“The calls were the classical ones previously described. A haunting ‘hooting-like call’. The first note is different from the rest. It starts with a ‘hu’ and is followed by between 5-7 ‘ho’ or ‘poh’ notes – see the sonogram/waveform above and edited audio recording in below.

WingedBabblerCh-iridescent patch [AmarSingh] 5

“When making the calls the bird often will raise its head (pointing skyward) and then come down to a bowing position and finally back to horizontal – see composite above. In addition the blue patches at the side of the throat become more prominent.”

Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
1st May 2016

Location: RDC, Sepilok, Sandakan, Sabah, Malaysia
Habitat: Interior of forest reserve, thick canopy

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