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Shows With Contributions by Joe Henderson

House Finches - Red and Yellow

House Finches eat many kinds of seeds and fruits. A careful look at male House Finches at a feeder shows that, while most males show red feathering, some are decidedly more orange - and some even yellow. House Finches acquire their coloration from pigments known as carotenoids in the foods they... read more »

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Topics & Themes:  plumage

You Are What You Eat

House Finches are familiar birds all across North America. Researchers have shown that the red coloration of males is produced from carotenoid pigments in the birds' diet. Male House Finches develop brighter plumage when they are growing in new feathers, if they eat more fruits containing... read more »

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