robertjerl wrote:
https://www.allaboutbirds.org/guide/Northern_Parula/overview
About 1/2 way down the page it does say occasionally they will be found breeding as far west as New Mexico, Arizona and the coast of SoCal. When I looked at your post I thought it looked like some kind of small warbler, and it turns out they are warblers.
I just had no clue what name to look for them under until Appy posted.