Family Ground Babblers (Pellorneidae)


Rufous Limestone-babbler (Turdinus calcicola)


French: Turdinule calcicole German: Thaidrossling Spanish: Ratina calcícola

Napothera crispifrons calcicola


, 1939,

Hin Lap, East Siam


Hitherto treated as conspecific with T. crispifrons, but differs in its tawny central belly with white shaft streaks vs grey belly with white-and-dark-brown streaks (3); smaller, more organized black arrowheads on white throat (1); paler upperparts, wings and flanks (1); shorter wing (mean of 3 males 73.7 mm vs 15 male nominate 78.6; mean of 2 females 69 vs 15 female nominate 77.5; at least 1); song a short (0.7–1.5 s) phrase of 3–6 notes vs a much more protracted (4–30 s) phrase of at least 16 notes, commonly many more (at least 2)#R. Monotypic.

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

SW part of NE Thailand.

Descriptive notes

18–20·5 cm. Adult has crown to back grey-brown with very thin black scaling, upperpart feathers also with narrow pale shaft-streaks, rump unmarked brown; upperwing and tail... read more


Song a rapid rising series of 3–6 short piercing whistles, duration normally 0·7–1·5 seconds; only... read more


Evergreen and mixed deciduous forest and scrub in limestone hill country, usually with boulders and... read more

Food and feeding

Insects and seeds. Searches around rocks and vegetation. Occurs in pairs or in small groups of up to six individuals (possibly family... read more


Season Aug–Sept. Nest dome-shaped with circular entrance, made from dried twigs, roots and other plant material, lined with fine plant... read more



Status and conservation

VULNERABLE. Uncommon and very local. This species is believed to be restricted to one small, declining population, in Saraburi Province. Its population size has not been... read more

Recommended citation

del Hoyo, J., Collar, N. & Christie, D.A. (2018). Rufous Limestone-babbler (Turdinus calcicola). 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 on 12 December 2018).