While birding County Highway 2-22 (Bullard Canyon Rd.) in Lakeview, Lake County, I came across a bird call that stumped me. The bird stayed low in a shrub the whole time. It was a rolling call with two end notes, repeated over and over. The “voice” reminded me of a Yellow-rumped Warbler. Even though I don’t think of YR Warblers as staying low, it occurred to me it might be a youngster who didn’t know any better. And, he is now independent and practicing his singing lessons.
If it isn’t a Yellow-rumped Warbler, I would very much like to know what it is.