A survey of museum specimens reveals that more than a dozen species of the birds sport biofluorescence in feathers, skin or even inside their throats.

Feathers are among the most complex cutaneous appendages in the animal kingdom. While their evolutionary origin has been ...

Illuminated by blue and UV light ... aren’t biofluorescent don’t have that ultra-black feather.” There are more than 11,000 known bird species, but only a handful of groups are known ...