What do Wilson’s bird-of-paradise, the red-necked tanager, and the keel-billed toucan all have in common? They are all beautifully colored birds. It is not uncommon to find birds that are visually ...

Male Mandarin ducks display vibrant coloration to attract mates. Mandarin ducks have not become a problematic invasive species in North America, despite over 50 years of population establishment. The ...