Immature plumage is similar to that of the adult but paler yellow, sometimes with a slightly buffy throat. Unlike other vireos, but compare with pine warbler, with which it is confused ...

These are probably the best known and most frequently encountered wood warblers. Although variable, all yellow-rumped warblers possess a bright yellow rump, which is shared with only 2 other species.

In the East, they may form mixed flocks with brownish yellow pine warblers, a species that also enjoys suet and seeds. “Our yellow-rumped warblers manage to sneak a few drops from our ...