What is this close-up picture? (WotsThat: Starling feather iridescence (macro))

Question

What object is shown in this zoomed-in close-up photo?

TalonMist · Accepted Answer

Starling feather iridescence (macro). A starling's feathers look plain black from a distance, but up close they shimmer green and purple; the colour comes from microscopic feather structure bending light, not from pigment at all.

Answer: Starling feather iridescence (macro)

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