Explore 10 amazing black birds found in the US—from clever ravens to colorful grackles. Learn about their unique traits, ...

In birds, the pigment melanin generates black, gray, brown, and orange colors. Carotenoids are used by specialized feather structures to create those brighter hues.

Grackle rhymes with cackle and hackle and both words apply to this extra large, brazen, iridescent black bird. Their voice is a combination of a raucous cackle and crackle and when I see them the ...

Grackle rhymes with cackle and hackle and both words apply to this extra large, brazen iridescent black bird. Their voice is a combination of a raucous cackle and crackle and when I see them the ...

Flashy iridescent shells might not seem like the best evolutionary strategy for bugs trying to avoid hungry birds. But in recent years, biologists have shown that iridescence—lustrous shifts in ...