This morning along the north levee of the Sacramento Bypass, a yellow-breasted chat was singing continuously from near the top of a set of bare snags about 100 yards east of where the road makes a sharp turn and leaves the levee. This behavior suggests a territorial bird.
A bit west of the chat, a Nashville warbler sang occasionally. This species is irregular (that is, not every year) in Yolo County in late May. For a male to be here this late offers the possibility that it was a vagrant of the eastern race.