• Corpus ID: 92311613

Specific status of taxa within the Greenish Warbler complex

@article{Collinson2003SpecificSO,
  title={Specific status of taxa within the Greenish Warbler complex},
  author={Martin Collinson and Alan Glasgow Knox and David T. Parkin and George Sangster},
  journal={British Birds},
  year={2003},
  volume={96},
  pages={327-331}
}
The taxonomic status of six subspecies of Greenish Warbler Phylloscopus trochiloides was re-examined in the light of fresh evidence about their identification characters and biological relationships.Although P. t. viridanus and P. t. plumbeitarsus (‘Two-barred Greenish Warbler’) behave as distinct species in their zone of overlap, the five subspecies viridanus, ludlowi, trochiloides, obscuratus and plumbeitarsus form a cline within which it is not possible to define species boundaries.There is… 
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