This Nashville Warbler was a lifer for me. I initially posted this photo on Facebook and asked Dick Cronberg, our reknown, resident wildlife photographer to confirm the ID, and that he did!
4/27/14 Nashville Warbler (Vermivora ruficapilla) gleaning insects off of the flowers of the Silk Oak tree (Grevillea robusta) in our front garden. The gray head, yellow throat, olive back, and white eye ring are indicative. It's called a "Nashville" warbler because it migrates through that area.