Bearded vultures are found in many parts of the world, from southern Europe and the east coast of Africa to the Middle East and the Himalayas. They have naturally white plumage on their head, neck, and underbelly. As they age, however, they begin to intentionally dye those feathers an orange-red color with mud from iron-rich soils. Scientists think they do this to indicate their status. The intensity of the coloration depends on age and gender. Older birds, especially females, display stronger pigmentation.
Vulture vanity:
anon998024
Post 2 |
Maybe the mud has some properties that fight infection or pests? |
anon996650
Post 1 |
Find this info hard to believe. I believe the birds are preening themselves,and not dying themselves. The coloration would come naturally from the color of the mud. |