Mystery Yellow Bird

My guess is either a female Yellow-rumped Warbler, or a Yellow-bellied flycatcher. I am not sure these two photos are of the same bird. There were some that must have been some female Yellow-rumped Warblers, hanging around with the males, but then there was a larger yellow bird. I have spotted this bird in the same place twice, so when Josh wakes up I may go out again today and focus on getting a photo of this one.