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Mountain Leaf Warbler - BirdForum Opus

Subspecies sarawacensis
Photo © by Godwin Chan
Sabah, Malaysia, August 2019

Alternative name: Mountain Warbler

Phylloscopus trivirgatus


Subspecies kinabaluensis
Photo © by martinuk
Mount Kinabalu National Park, Sabah, Borneo, 6th July 2010

10–11 cm (4-4¼ in)

  • Head with yellow central crown and supercilium alternating with black stripes.
  • Plain greenish upperparts
  • Yellow underparts
Subspecies parvirostris
Photo © by jasnjohn
Genting Highlands, Malaysia, June 2006


Subspecies sarawacensis is brighter yellow while subspecies kinabaluensis lacks yellow and is mostly grey.


Southeast Asia: found in Malay Peninsula, (Malaysia and possibly into Thailand) as well as Greater and Lesser Sundas (Borneo, Brunei, Sumatra, Java, and Bali, east to Lombok and Sumbawa in Indonesia)


Negros Leaf Warbler was formerly included in this species.


Clements recognizes the below subspecies [1]. Ranges given for each of these do not come from Clements but instead from a field guide for the area, as the authors have local knowledge[2].

  • P.t. parvirostris: Malay Peninsula
  • P.t. trivirgatus: Sumatra, Java, Bali, Lombok, and Sumbawa
  • P.t. kinabaluensis: Mountains of north-eastern Borneo (Mt. Kinabalu)
  • P.t. sarawacensis: Mountains of the rest of Borneo (Poi Mountains of western Sarawak)


Broadleaf montane and evergreen submontane forests down to 800 m asl in most areas and to 450 m in Lumbok and Sumbawa.



Their diet consists almost entirely of small insects and larvae, particularly ants and caterpillars. They feed either alone or in pairs, but also frequently joins mixed species flocks.


They construct a dome-shaped nest and place it on the ground or into a hole. Their clutch consists of 2-3 eggs.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Eaton, JA, B van Balen, NW Brickle, FE Rheindt 2021. Birds of the Indonesian Archipelago (Greater Sundas and Wallacea), Second Edition. Lynx Editions. ISBN978-84-16728-44-2
  3. Handbook of the Birds of the World Alive (retrieved October 2018)
  4. Clement, P. (2022). Mountain Leaf Warbler (Phylloscopus trivirgatus), version 1.1. In Birds of the World (S. M. Billerman and N. D. Sly, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.mouwar2.01.1

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