Townsend's Warbler searches for small insects high in conifers, where its yellow and black plumage stands out among the foliage. In winter it also occurs in Mexico, Central America, and along the Pacific coast of the United States.
Adult males have a black head and throat, a golden face, an olive back, and a yellow breast with black flank streaks. Females and young birds have similar colors but less strongly marked patterns.
On its breeding grounds it forages high in mature coniferous and mixed forests, searching dense foliage for small insects and larvae.
An extinction-risk assessment has not been added yet.