Hi Melanie,
Looks like Halictus poeyi, a native sweat bee. Here's a link to an interesting article(NEW BACKYARD BUG: HALICTUS POEYI) http://benkolstad.net/?p=5020
"My work is loving the world. Here the sunflowers, there the hummingbird — equal seekers of sweetness. Here the clam deep in the speckled sand. Are my boots old? Is my coat torn? Am I no longer young, and still not half-perfect? Let me keep my mind on what matters, which is my work which is mostly standing still and learning to be astonished." — Mary Oliver, from Messenger
