During my Half Moon Bay birding walk last week, we saw several warblers on the move (always): some fall visitors, some spring visitors, and a few elusive residents. My thanks to local guides Slow Adventure and Alvaro’s Adventures for a great week.

Townsend’s Warblers winter along our coast and then fly north for summer breeding.

Yellow Warblers are here during the summer and then migrate to the south for winter.

Orange-crowned Warblers are here year-round. They move south during the winter and then north and inland for the summer.

Common Yellowthroats are supposedly here year-round, but during the spring walk I saw my first one (below). We mostly heard them during the fall walk and I didn’t get a photo.

Wilson’s Warblers migrate through between northern breeding and southern wintering. (This photo is from the spring walk, but we saw them briefly on this fall’s walk.)