Interestingly, the colors are not just for aesthetic appeal; they play a crucial role in their survival. Bright colors can attract mates and deter predators.
In addition, the iridescent feathers help hummingbirds stand out in the dense foliage of their habitats, making them more visible to potential mates and signaling their presence to other hummingbirds.
The study of hummingbird feathers and their coloration offers insight into how light interacts with natural structures, potentially influencing technologies such as color displays and optical materials.