A quiet, modest, unobtrusive little bird that must be sought to be seen in its shady retreats, this little-studied species can easily be overlooked.
It is typically associated with oaks and mixed woodlands, where it hops along the foliage hunting for insects. In winter it forages with flocks of chickadees, kinglets, and nuthatches.
This is Oregon's only resident vireo. Although it is sometimes referred to as non-migratory, some seasonal movement has been observed. Similar in appearance and behavior to the more common and widespread Ruby-crowned kinglet.