Do you know this bird?

A few weeks ago, I noticed a little bird nursing two eggs on a palm tree two feet outside my window, and I decided to try to take a few snapshots of the chicks. Although I've seen it clean and feed the baby chicks, whenever I approach the nest on the porch to take some pictures, the mamma bird immediately covers the chicks with her wing and gives me "the stare" until I feel like a tresspasser on my own porch. I took some photos anyway, which you may see here. Update: I liked up the bird, and it's a white-winged dove.