A few fox sparrows joined the mixed flock at the feeders on Saturday. These guys are pretty skittish compared to the rest of the sparrows and juncoes. They race through the gravel under the feeders, scratching up fallen seed.
This is a new yard bird for me. I'm sure they've been here, but I have only tried telling sparrows apart since spring. A great book for sparrow identification is Identify Yourself by Bill Thompson III. Maybe I'll try warblers next.