U.S. birds display a wide array of striking hues. But just how colorful are our American birds? What you need to know from ...

Red, white and blue birds of Pennsylvania. Published: Jul. 04, 2018, 10:00 a.m. By . ... the male features a bright red face, an iridescent blue-green neck and a stark white neck band.

While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light. A Princeton-led research team trained wild ...

June 15, 2020 — While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light.

One day, I saw this bright red bird and I had to find out what it was,” she recalled. “It was so bright, I initially thought it was a piece of trash,” she said.

Winter can be, at the landscape level, somewhat monochrome – sweeping vistas of snow, green pine needles and ochre marsh grass peeking through. But, look closer and there are explosions of color ...

Blue birds and red birds get their vibrant colors in very different ways, and comparing the two strategies could tell scientists something fascinating about how materials (natural or synthetic ...