It’s been photographed in extremely favorable lighting conditions with a telephoto lens and a high-speed digital camera. Also, the image’s color levels have been tweaked to make the colors more vibrant and to increase the contrast. The bird would probably not look like that to the naked eye.
The bird in the image looks like something you'd see in one of those "X theme song horror (G minor)" videos on yt. The ones where they invert all the colors and pretend they created something scary.
Not only do they look pretty, they sing pretty too. I did a lot of tree planting in my twenties and these beauties would sometimes appear to hang out and sing with me while I worked.