Gansu leaf warbler
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Phylloscopidae
Genus: Phylloscopus
Species:
P. kansuensis
Binomial name
Phylloscopus kansuensis
Meise, 1933

The Gansu leaf warbler (Phylloscopus kansuensis) is a small passerine bird known only from China. It belongs to the leaf warbler genus Phylloscopus within the family Phylloscopidae. It was formerly treated as a subspecies of Pallas's warbler (P. proregulus) but is now regarded as a separate species based on differences in voice and cytochrome-b gene sequences.[2]

It is 10 cm long, slightly larger than Pallas's warbler. It has greenish upperparts, pale underparts and a pale rump. The head has a long white supercilium and a pale stripe along the centre of the crown. The wings have one conspicuous wingbar, a slight second bar and whitish edges to the tertials.[3]

The song is very different from Pallas's warbler and consists of a thin, high-pitched note followed by a series of accelerating notes and finally a trill.[3]

It is known to breed only in Gansu and Qinghai provinces in northern China. Its wintering grounds are uncertain but probably lie in Yunnan province in southern China.[3] It is found up to 3,200 metres above sea-level in deciduous forest with some spruce and juniper.[3][4] It is not currently known to be threatened with extinction and so is classed as a species of Least Concern by BirdLife International.[4]

References

  1. ↑ BirdLife International (2016). "Phylloscopus kansuensis". IUCN Red List of Threatened Species. 2016: e.T22732653A95048180. doi:10.2305/IUCN.UK.2016-3.RLTS.T22732653A95048180.en. Retrieved 12 November 2021.
  2. ↑ Martens, Jochen; Dieter Thomas Tietze, Siegfried Eck & Michael Veith (2004) Radiation and species limits in the Asian Pallas's warbler complex (Phylloscopus proregulus s.l.), Journal of Ornithology, 145 (3): 206-222. [Abstract only]
  3. 1 2 3 4 MacKinnon, John & Karen Phillipps (2000) A Field Guide to the Birds of China, Oxford University Press, Oxford.
  4. 1 2 BirdLife International (2009) ["Archived copy". Archived from the original on 10 July 2007. Retrieved 2012-12-22.{{cite web}}: CS1 maint: archived copy as title (link)/datazone/species/index.html?action=SpcHTMDetails.asp&sid=31735&m=0 Species factsheet: Phylloscopus kansuensis.] Downloaded from "Archived copy". Archived from the original on 10 July 2007. Retrieved 2012-12-22.{{cite web}}: CS1 maint: archived copy as title (link) on 28 June 2009
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