This is a male Dark-Eyed (Oregon) Junco perched in a privet tree in our backyard. The male Junco is distinguished by its black hood. The female Junco is duller with a gray brownish head. Both have white outer tail feathers that flash conspicuously as they fly away. 

Juncos are mainly ground feeders but will eat from hanging feeders. Their favorite feeder foods are mixed seed, millet, hulled sunflower, and cracked corn.