- Jan 15, 2012
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Here's a picture of a Sunflower to compare:

The middle picture may not be the true color, since we have no capacity to see ultraviolet it'd only be a guess as to what color a bird would see. But the picture shows what lies in the ultraviolet spectrum, there's a lot we don't get to see. Not only that but Human skin may look smooth and mono-colored to us, but to a bird it takes on an almost metallic appearance with lots of freckles. Bruises which aren't visible to the naked eye also become visible, which may be why Emus occasionally peck at areas of skin which look perfectly clean and normal to us.
The middle picture may not be the true color, since we have no capacity to see ultraviolet it'd only be a guess as to what color a bird would see. But the picture shows what lies in the ultraviolet spectrum, there's a lot we don't get to see. Not only that but Human skin may look smooth and mono-colored to us, but to a bird it takes on an almost metallic appearance with lots of freckles. Bruises which aren't visible to the naked eye also become visible, which may be why Emus occasionally peck at areas of skin which look perfectly clean and normal to us.