Female Kingfisher photographed at Stodmarsh in Kent, UK. The Female identified by the orange on the lower half of the beak.
"Their bright feather colours are not due to true pigment, for true blue pigment does not actually exist in birds. Rather, the astonishing colours of the upper parts of the kingfisher are the result of a complex structure in the layers of the feathers, which filters out certain colours of light, reflecting back only blue. This is known as the `Tyndal effect' and as a result of it the kingfisher can appear to turn from bright blue to the rich emerald green with only a slight change in the angle at which the light falls on it." [Charlie Hamilton James]