On my recent trip to Ecuador a Violet-fronted Brilliant hummingbird perched nearby. Any time a hummingbird perches I start taking pictures of it (because they are so hard to capture in flight). When I got home and processed the images I found I had taken quite a few in less than 30 seconds and when I looked closely at each image I noticed that the head feathers changed color many times during those few seconds. Usually I think of hummingbirds’ gorget (throat area) changing colors so I thought it was unusual to see the crown of the head changing from purple to blue to almost black.
I used my new-found skills at creating a multi-image frame so it would be easier to see the color change. Look closely at just its head starting on the top row going left to right then down a row.