Hummingbird Iridescence

So far the BirdCam hasn't taken a picture of a Hooded Oriole yet this year, but there are plenty of pictures of hummingbirds.  

Anna's Hummingbird

I like how it captures them flying in and hovering.   

Anna's Hummingbird

Anna's Hummingbird

Anna's Hummingbird

The picture above illustrates the iridescence of the feathers on this birds head.  Light bounces off the feathers, resulting in shimmering hues that shift as the bird turns it's head.