About us: We own the Wild Birds Unlimited nature shop in East Lansing, Michigan,
a store that provides a wide variety of supplies to help you enjoy the birdwatching hobby.

This blog was created to answer frequently asked questions & to share nature stories and photographs.
To contribute, email me at bloubird@gmail.com.

Saturday, April 4, 2015

Eggs far worthier than the Easter Bunny's

Tinamous have eggs with shells in bright, shimmering colors that can appear to change as you look at them. The shy, turkey-size South American birds are the only animal known to lay eggs that are iridescent. The cuticle, or outermost layer, of a tinamou egg has special characteristics at the nanostructural level that affect how it reflects light. This “structural coloration” plus pigment produces colorful, glossy eggshells. Why secretive tinamous need such Technicolor eggs remains a mystery. Multiple females lay their eggs in one nest, which is then incubated by a male, so perhaps this may have something to do with brightness.

Sources:
Evolution's oddest eggs: http://goo.gl/2uxba5
The Great Tinamou Lays the Fanciest Eggs in the Bird World http://goo.gl/qvM3ko

No comments: