Yellow is an impulse color or as it was told to me when I worked in broadcasting. We would ‘push’ the yellows above the chroma/brightness level to just stay legal on the scope when putting fonts on the screen. When it aired, while watching your television the yellow would create a ‘buzz’ in the signal causing the viewer to pay attention…wondering what is that buzz? Buzz. Buzz.
The goldfinch has that buzz about them so that every time I see one I stop in my tracks and pay attention. So beautiful.