Old World Warblers (Sylviidae)

Mountain Chiffchaff (Phylloscopus sindianus) - HBW 11, p. 651

French: Pouillot montagnard German: Bergzilpzalp Spanish: Mosquitero Montano
Other common names: Eastern/Sind Chiffchaff; Caucasian Chiffchaff, Lorenz’s Warbler (lorenzii)

Taxonomy: Phylloscopus sindianus W. E. Brooks, 1880, Sukkur, Sind, Pakistan.
Until recently was often treated as a race of P. collybita, and the two have hybridized exceptionally (in Iranian Azerbaijan), but significant differences exist between them in structure, voice, morphology and mitochondrial DNA; further, the two are altitudinally segregated in areas of sympatry, e.g. NE Turkey, present species breeding at higher elevations. Race lorenzii differs vocally and, to slight extent, genetically from nominate, and is treated by some authors as a separate species; further research required, however, before such treatment considered acceptable. Two subspe.. View all taxonomy...

Taxonomy: Phylloscopus sindianus W. E. Brooks, 1880, Sukkur, Sind, Pakistan.
Until recently was often treated as a race of P. collybita, and the two have hybridized exceptionally (in Iranian Azerbaijan), but significant differences exist between them in structure, voice, morphology and mitochondrial DNA; further, the two are altitudinally segregated in areas of sympatry, e.g. NE Turkey, present species breeding at higher elevations. Race lorenzii differs vocally and, to slight extent, genetically from nominate, and is treated by some authors as a separate species; further research required, however, before such treatment considered acceptable. Two subspecies recognized.

Subspecies and Distribution:

  • lorenzii (Lorenz, 1887) - breeds Caucasus S to NE Turkey and NW Iran; non-breeding at lower altitudes to S Iran.
  • sindianus W. E. Brooks, 1880 - breeds S Tien Shan and from Tajikistan (Pamir-Alai Mts) E to Kunlun Shan and W Altun Shan, and SE to Karakorum and NW Himalayas in Pakistan (NW Chitral, Gilgit, Baltistan) and NW India (Ladakh E to N Himachal Pradesh); non-breeding mainly in S Pakistan (Sind).

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