[["Birds see more colors than human in several ways. Not only are birds able to perceive the familiar rainbow of colors as well as parts of the ultraviolet (UV) spectrum that are invisible to human eyes.", 11.0], ["I've watched the birds attracted to the feeders hung in my yard and I would be willing to state that no birds are color blind", 10.0], ["Not only are birds able to perceive the familiar rainbow of colors as well as parts of the ultraviolet (UV) spectrum that are invisible to human eyes, but they also have better visual acuity. The exact number of cones varies in each bird species but is typically higher than humans and other mammals.", 3.0]]
are cardinals color blind
animals,giraffes