What color often stains the flanks of the White-eyed Vireo contrasting its white belly?

Answer

A faint but noticeable yellowish wash

While the throat and chest are typically pale grayish-white or nearly white, the identification is often solidified by observing the flanks. These sides often exhibit a faint but distinct yellowish wash or staining that contrasts with the white of the central belly. The intensity of this yellow wash can sometimes be a subtle indicator of geographic variation or subspecies differences.

What color often stains the flanks of the White-eyed Vireo contrasting its white belly?
speciesbirdappearancecharacteristicvireo