Family Tetrakas (Bernieridae)

Least Concern

Cryptic Warbler (Cryptosylvicola randrianasoloi)


French: Sylvicole cryptique German: Steineiben-Madagaskarsänger Spanish: Silvícola críptico

Cryptosylvicola randrianasoloi

Goodman et al.

, 1996,

Andringitra National Park, Fianarantsoa Province, Madagascar




Humid evergreen forest belt of E Madagascar, from Manongarivo and Tsaratanana Massifs in N to Andohahela in SE; not confirmed on Masoala Peninsula#R.

Descriptive notes

12 cm; 7·8–9·1 g. A small canopy warbler with short wings, longish tail with graduated tip, legs rather long and slender. Has top of head olive-green, narrow dull... read more


Song, usually delivered repeatedly from emergent dead twigs in treetop or from lower open branches... read more


Middle-altitude and montane evergreen humid forests, often along steep ridges or in areas of bamboo... read more

Food and feeding

Insects; recorded prey include a cricket (Tettigoniidae) 1·5 cm long. Small spiders (Araneae) and caterpillars and a small moth (... read more


Season Oct–Dec. One nest examined contained 3 eggs. No other information.


Apparently sedentary.

Status and conservation

Not globally threatened. Restricted-range species: present in East Malagasy Wet Forests EBA. First discovered in 1992 in Maromiza Forest, near the Analamazaotra Special... read more

Recommended citation

Hawkins, F. & Pearson, D. (2019). Cryptic Warbler (Cryptosylvicola randrianasoloi). 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 15 December 2019).