There are two types of Yellow-rumped Warblers: Audubon's and Myrtle.
Audubon's Warbler has a yellow throat (except for a few immature females), whereas Myrtle Warbler has a white eyebrow. See if you can identify the following birds. It's fun.
A: "Who am I?"
B: "Who can I be?"
Answers:
A: "I am a male Audubon's Warbler with the yellow throat and the yellow crown."
B: "I am a female Myrtle Warbler with no yellow throat, but with the white eyebrow. My brownish and less bright body indicates a female."