Photo by Steve N. G. Howell
|
| Figure 8. Dusky Warbler, Phylloscopus
fuscatus (1997-174), Palomarin Field Station, Point
Reyes Bird Observatory, Marin County, 18 Oct 1997.
Although the supercilium may be fainter in the supraloral
area than is typical of this species, the small bill and
narrow whitish supercilium (as well as the call) helped
to eliminate similar species such as the Radde's (P.
schwarzi) and Yellow-streaked (P. armandii)
warblers, yet to be recorded in North America. Photo by Steve N. G. Howell |