Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Personal tools
Opticron - Imagic BGA VHD 8x42 – 2018 BBR Award Winner
Main Categories

Aberrant Bush Warbler

From Opus

by range, the image should show a bird of subspecies intricatusPhoto by China Guy Sichuan, China, January 2009
by range, the image should show a bird of subspecies intricatus
Photo by China Guy
Sichuan, China, January 2009
Horornis flavolivaceus


[edit] Identification

12–13·5 cm (4¾-5¼ in). A medium sized bush-warbler with short, rounded wings and average tail length, perhaps the most phylloscopus like shape wise in the region.

  • Yellowish olive-green upperparts
  • Pale yellowish supercilium
  • Narrow whitish eyering
  • Dark eyestripe
  • Buffish or ollive-yellow underparts, darker olive on breast and flanks (variable)
  • Dark eye
  • Dark horn-brown bill, pale pink base of lower mandible
  • Yellow to dusky pinkish-brown legs

Sexes similar. Juveniles are similar to adults but have uniform buffish-yellow underparts.

[edit] Variations

  • alexandri with olive-brown upperparts but darker olive-buff underparts than nominate and with buffish breast and flanks
  • weberi with strong rufescent-brown wash above and below, longer tail and ochre-brown breastband and flanks
  • intricata is similar to weberi but paler and less yellow on underparts
  • obita is similar to intricata but smaller and with brighter olive upperparts, washed pale yellow underparts and rufous-ochre flanks

[edit] Similar species

Greener (not rufous) upperpart than Yellowish-bellied Bush Warbler without rufous wingpanel and yellowish (not grey) throat and breast. Differs from Brownish-flanked Bush Warbler in yellower supercilium obvious before eye, greener upperparts having the same colour like crown and yellowish underparts tinged olive on breast and flanks.

[edit] Distribution

India and China east to Vietnam and Thailand.
Common to fairly common in parts of its range.

[edit] Taxonomy

Formerly placed in genus Cettia.

[edit] Subspecies

Seven subspecies are recognized[1]:

  • H. f. flavolivaceus :
  • H. f. stresemanni:
  • North-eastern India (Garo and Khasi hills of Assam)
  • H. f. alexanderi:
  • H. f. weberi:
  • H. f. intricatus:
  • Northern and eastern Myanmar and south-western China (southern Shanxi, eastern Sichuan)
  • H. f. oblitus:

intricatus, and oblitus should possibly belong with Sunda Bush-Warbler[3] instead of Aberrant Bush-Warbler, however, that change has so far not been adopted by the major checklists.

[edit] Habitat

Found in bushes, tall grass clumps, ferns, dense bamboo thickets and scrub undergrowth in forest clearings and egdes of forest.
Breeds at 2400-3950 m in the Himalayas, up to 2900m in northeastern Indian hills and between 1200 m and 4900 m in China. At lower elevations in non-breeding season.

[edit] Behaviour

A shy and secretive species, often skulking for long periods in thick vegetation.
Has a distinctive habit of continually flicking wings and giving grating call when alarmed. Tail often slightly raised.

[edit] Diet

Not well known, feeds probably on invertebrates and larvae.
Forages low in dense vegetation.

[edit] Breeding

Poorly known. Breeding season from May to August. The nest is a ball made of dry grass, bamboo leaves and feathers. It's placed on the ground or low down in a clump of tall grass. Lays 3 to 4 eggs.

[edit] Movements

An altitudinal migrant, moves to lower elevations after breeding.

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from
  2. Del Hoyo, J, A Elliot, and D Christie, eds. 2006. Handbook of the Birds of the World. Volume 11: Old World Flycatchers to Old World Warblers. Barcelona: Lynx Edicions. ISBN 978-8496553064
  3. Thread in the Birdforum Taxonomy Forum.

[edit] External Links


Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.25236106 seconds with 6 queries
All times are GMT. The time now is 16:29.