Typically, females appear less colorful than males; this adaptation helps protect females from predators. Such an adaptation ...

Blue birds inhabit diverse regions worldwide, from rainforests to gardens, ... Females are greenish-blue with white stripes and yellow-tinted underparts. Credit : PINTEREST.

Clasping a steaming cup of coffee, my fingers stay warm as I watch the brown, gray, blue, red, and yellow birds flit to and fro. Sometimes, they move quickly in a flash of feathers.

In addition to blue, green and red cone cells, many birds have cone cells that are sensitive to ultraviolet light, allowing them to see a broader spectrum of colors than people can.