Here's a photo of a female Anna's hummingbird. You can see she has some of the structural color on her body where she glistens a beautiful green. However, she is no where near as colorful as the male. This is not uncommon in the bird world. In species where the male provides no parental care he is usually brighter than the female. In species where both sexes raise the young there is typically little difference in the appearance of the male and female birds. This photo was also taken at Bolsa Chica yesterday.