Most birds with bright yellow or red feathers — think goldfinches and cardinals — use pigments called carotenoids to make those colors. "The reason that a bird's egg's yolk is a bright yellow ...

From tall to small, yellow flowers add a splash of cheerful color to the backyard. See our favorite yellow blooming flowers ...

She extols several plants currently blooming in her garden whose flowers are in the fiery color spectrum that stretches from ...

Scientists estimate the male northern cardinal’s genetic mutation that makes it yellow also makes it a 1-in-10 million bird. The abnormally colored songbird is now a part of the couple’s daily ...

Some birds like the Yellow-naped amazons (Amazona auropalliata) that dart across trees from Mexico to Central America also appear to have regional dialects. The findings are detailed in a study ...