Blue on blue

Blue on blue by ricmcarthur
Blue on blue, a photo by ricmcarthur on Flickr.
I was surprised at how clear this photo was considering I took it through the Wonderful Wildlife Window which I haven't cleaned recently.
We have a regular parade of birds into our feeders particularly in the winter.

Scientific stuff
Cyanocitta cristata
The pigment in Blue Jay feathers is melanin, which is brown. The blue colour is caused by scattering light through modified cells on the surface of the feather barbs.

The black bridle across the face, nape, and throat varies extensively and may help Blue Jays recognize one another.

The oldest known wild, banded Blue Jay lived to be at least 17 years 6 months old.

www.allaboutbirds.org/guide/blue_Jay/lifehistory

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