Family Ground Babblers (Pellorneidae)

Vulnerable

Naung Mung Wren-babbler (Rimator naungmungensis)


Taxonomy

French: Turdinule de Naung Mung German: Naung-Mung-Säbeldrossling Spanish: Ratina de Naung Mung
Taxonomy:

Rimator naungmungensis

Rappole et al.

, 2005,

Naung Mung, Naung Mung Township, Kachin State, Union of Myanmar, elevation 540 m, 27°30’ N, 97°48’ E

.

Given species rank in original description#R but treated as subspecies in HBW owing in part to mistaken claim of morphometric differences#R#R; single recording, however, reveals a song or call very different from any recording of R. danjoui, involving a much higher maximum frequency (3), a rising whistle (pitch change 3) and shorter note length (ns[1]), and this, combined with darker overall colour (1), stronger-marked moustachial lines (1) and faint soft-edged ochreish vs well-defined brown-streaked breastband (2), returns the form provisionally to species rank. This assessment strongly supported by recent study, which found significant genetic divergence (7.0% genetic distance, cytochrome b) and morphological differences (significantly different bill and hallux-claw lengths)#R. Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.
Distribution:

Naung Mung area of Kachin State, in N Myanmar.

Descriptive notes

18–19 cm; 35–46·2 g. Medium-sized short-tailed babbler, dark brown above, mostly white below, with very long, heavy, strongly decurved bill. Adult has crown to upperparts,... read more

Voice

Little known. Song or call a short rising whistle, with each note lasting c. 0·5 seconds and... read more

Habitat

Broadleaf evergreen forest; seems to favour understorey of pre-montane rainforest. Found at around... read more

Food and feeding

Diet presumably invertebrates; stomach contents of one specimen were cicada nymphs (Cicadidae), each 20–25 mm in length. Long, decurved... read more

Breeding

No information, but season speculated to start no earlier than Apr.

Movements

Presumably resident.

Status and conservation

VULNERABLE. Fairly common in Naung Mung area, but status elsewhere in presumed range is not known. In 2008, there was a sight record (not yet confirmed) from extreme western... read more

Recommended citation

del Hoyo, J., Collar, N., Christie, D.A. & Kirwan, G.M. (2018). Naung Mung Wren-babbler (Rimator naungmungensis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/1343975 on 21 June 2018).