This is a Flicker (?) that we noticed around the area last fall when we moved in to our apartment. It disappeared in early spring, and recently made its return... I've become the biggest bird nerd... We have feeders out, and get 5 or 6 different species of Finch, Sparrow, Chickadee and my personal favorite, the Bush Tit. No, not a typo... We've also had a Hummingbird (just once!) and recently a Stellar's Jay. See? Bird nerd.