- Plain Leaf Warbler
 - Plain Leaf Warbler
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Plain Leaf Warbler Phylloscopus neglectus Scientific name definitions

Peter Clement and Guy M. Kirwan
Version: 1.0 — Published March 4, 2020
Text last updated May 2, 2018

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Field Identification

9–10 cm; 4·2–7 g. Small, short-tailed leaf-warbler, only slightly larger than Goldcrest (Regulus regulus), with plain or inconspicuous appearance. Has short and rather inconspicuous pale buffish-cream supercilium (creamy white when plumage fresh) fading over ear-coverts, narrow dark eyestripe, narrow white eyering or lower eye-crescent, pale buffish-brown ear-coverts; crown and upperparts almost entirely grey-brown, rump slightly paler grey; wing and tail feathers slightly darker, with paler edges (forming wingpanel in fresh plumage); dull whitish below , washed with buff-brown on side of breast and flanks; underwing-coverts whitish (loose feathers often show at bend of wing); iris dark brown; bill dark brown, paler horn-brown base of lower mandible; legs dark grey or blackish. Differs from P. sindianus in smaller size, slightly greyer plumage tone (also generally lacks warm buff-brown on cheek, breast side and flanks), shorter tail; from P. collybita in shorter tail, and absence of green or yellowish on upperparts, including at bend of wing. Sexes alike. Juvenile has slightly brighter brown upperparts than adult, supercilium whitish-yellow and flanks yellowish.

Systematics History

Formerly treated as a race of P. collybita owing to supposed general similarity in voice, but later considered a separate species on basis of concrete vocal differences as well as morphology. Monotypic.

Subspecies

Monotypic.

Distribution

Mountains of Iran, S Turkmenistan, E Uzbekistan, W Tajikistan, N & SE Afghanistan and W Pakistan (Baluchistan), recorded once in SE Turkey (1); non-breeding coastal Iran, C & S Pakistan, NW India, United Arab Emirates and N Oman.

Habitat

Breeds between 2400 m and 4200 m in oak (Quercus) forest, low bushes in juniper (Juniperus) forest, also above tree-line with sparse shrubs and alpine meadows with umbellifers and rose bushes (Rosa). On passage occurs in bushes and scrub along river valleys, in orchards and gardens, and in city parks. In winter found in forests and orchards in river valleys, also in tamarisks (Tamarix), roadside trees and acacias (Acacia) in drier areas, from sea-level to c. 1000 m.

Movement

Migratory, mostly over short distances; some birds may winter within overall breeding range, but at much lower levels. Departs from breeding area in Tajikistan in mid-Aug and early Sept, but present to mid-Nov, possibly later, in Turkmenia; arrives in wintering areas from late Oct, but most present Nov to Mar; return passage from late Feb, majority having left wintering areas by Apr, passage through C & N Pakistan late Mar, and present in N parts of breeding area from mid-May. Vagrants recorded in Sweden, Jordan, Israel, Bahrain and Yemen.

Diet and Foraging

Food mostly small insects and larvae. Forages usually alone in winter, but often in pairs in summer. Active and agile in upper foliage of trees, in bushes and in low vegetation. Takes most items from leaves or among foliage, and may cling upside-down on thin stems; also makes dashing flights after passing insects. Flicks wings frequently, but does not dip tail in manner of P. collybita.

Sounds and Vocal Behavior

Song  , often given also throughout non-breeding season, a soft twittering warble comprising varying phrases, some of which softer than others, including “zilitzwit”, “twissa twissa”, “chit-chuwich-chissa” and “pt-toodle-toodla”, and frequently repeated. Call a distinctive sharp “chit”, occasionally given as “chick”, “chip”, “cheet” or “tchoit”, often uttered in flight; also harsh, low-pitched short “churr” or “trrr trrr”, similar to that of Sylvia curruca.

Breeding

Season Apr–Jul. Nest a ball of grass, moss and feathers, placed up to 1 m from ground in scrub or clump of low shrubs. Clutch 3–5 eggs; no information on incubation and fledging periods.

Not globally threatened. Common to locally common in breeding season from Iran E to Baluchistan. Status in Turkey unclear, several records (one documented by description and sound-recording) in summers of 2004–2006 in SE of country, near Iranian border, where the species was apparently breeding, but not since (2). Fairly common in non-breeding season in Pakistan (Sind and NW Punjab); scarce in winter in United Arab Emirates and N Oman.

Distribution of the Plain Leaf Warbler - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Plain Leaf Warbler

Recommended Citation

Clement, P. and G. M. Kirwan (2020). Plain Leaf Warbler (Phylloscopus neglectus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.pllwar2.01
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