New World Warblers (Parulidae)

Northern Waterthrush (Seiurus noveboracensis) - HBW 15, p. 766

French: Paruline des ruisseaux German: Drosselwaldsänger Spanish: Reinita Charquera Norteña

Taxonomy: Motacilla noveboracensis J. F. Gmelin, 1789, Louisiana and New York, USA.
Recent studies of mitochondrial DNA suggest that this species and S. motacilla are not closely related to S. aurocapilla and should be placed in a separate genus (for which the name Parkesia has been proposed). The two form a species pair; sometimes regarded as constituting a superspecies, but overlap in ranges occurs in S Canada (S Ontario) and NE USA. Reported hybrid with Dendroica striata now thought probably to have involved Dendroica tigrina and present species. Geographical variation perhaps mostly clinal, and racial differences somewhat obscured by in.. View all taxonomy...

Taxonomy: Motacilla noveboracensis J. F. Gmelin, 1789, Louisiana and New York, USA.
Recent studies of mitochondrial DNA suggest that this species and S. motacilla are not closely related to S. aurocapilla and should be placed in a separate genus (for which the name Parkesia has been proposed). The two form a species pair; sometimes regarded as constituting a superspecies, but overlap in ranges occurs in S Canada (S Ontario) and NE USA. Reported hybrid with Dendroica striata now thought probably to have involved Dendroica tigrina and present species. Geographical variation perhaps mostly clinal, and racial differences somewhat obscured by individual variation; species sometimes treated as monotypic. Birds from Newfoundland described as race uliginosus, but considered inseparable from nominate. Three subspecies currently recognized.

Subspecies and Distribution:

  • notabilis Ridgway, 1881 - breeds from Alaska and NW Canada S to NW USA (EC Oregon to extreme NW Wyoming), and E to N Ontario and Great Lakes.
  • limnaeus McCabe & A. H. Miller, 1933 - breeds C British Columbia (W Canada).
  • noveboracensis ( J. F. Gmelin, 1789) - breeds SE Canada (E Ontario E to Newfoundland) and NE USA (S to N West Virginia).