Cardellina pusilla ORDER: PASSERIFORMES FAMILY: PARULIDAE
IUCN Conservation Status: Least Concern
© Gerrit Vyn
A common warbler of willow thickets in the West and across Canada, the Wilson's Warbler is easily identified by its yellow underparts and black cap.
A series of loud, rapid, chatter-like notes, dropping downward in pitch toward the end; not especially musical in quality. Call a soft, nasal "chip."