Yellow-rumped Warblers are complicated (see the Taxonomy section of their Wikipedia article, linked below).
I'm not sure if this is an Audubon's or a hybridized Audubon's × Myrtle because of the swoopy white feathers above the eye that extend past the typical eye ring.
No matter the ID, this was an exciting bird to see; I see Myrtles more often.
https://en.wikipedia.org/wiki/Yellow-rumped_warbler#Taxonomy










