What Makes Iridescent Feathers Unique? Birds with iridescent plumage are unique because their feathers contain a special structure that reflects and scatters light in a way that creates shimmering, changing colors. This unique attribute sets them apart from non-iridescent birds and makes them stand out in their environment.. Black shiny feathers give way to more colorful hues when this opportunistic bird hops into the sun. Male Common Grackles often look solid black when in shadow or low lighting. However once the sun hits, you can see their iridescent quality with feathers that reflect a metallic sheen of blue, purple, emerald green and gold.
Its feathers, seemingly black at a distance, dazzle with iridescent shades of green and purple when viewed up close. This medium-sized wader often mingles with other ibises and herons, making it a social creature. Found across warm regions of Europe, Asia, Africa, and the Americas, the Glossy Ibis thrives in marshes and mudflats. 13.. Common Grackles are blackbirds that look like they've been slightly stretched. They're taller and longer tailed than a typical blackbird, with a longer, more tapered bill and glossy-iridescent bodies. Grackles walk around lawns and fields on their long legs or gather in noisy groups high in trees, typically evergreens. They eat many crops (notably corn) and nearly anything else as well.