Lots of people love the Tiffany Blue, but have you ever seen a Tiffany Blue egg? In fact, there is a bird known as American robin that gives lays Tiffany Blue eggs.

The American robin is a migratory songbird with a reddish-orange breast. It is widely distributed in North America, usually in the northern part of the United States and southern Canada. As winter approaches, most of them move to the southern part of the United States and central Mexico.

The American robin is famous for its beautiful voice. People can always hear their chirping at dawn. Their songs are combined with several repeated discrete units. However, they chirp not only for fun, but also to help protect its territory. Every year, male robins will arrive at their migratory destination earlier than female robins, and will use their voice to claim their area.

Another interesting thing about American robins is that their eggs are a Tiffany Blue color, often called "robin blue egg." This beautiful color has attracted lots of people's attention. The reason they have robin blue eggs is due to the pigment in the blood of female robins.The blood of female robins contains a biliverdin pigment, which is transferred onto the eggshell. 

About 'Melody of Birds'

"Melody of Birds" is a series of pictures about lovely birds in the world. Stay tuned to see more charming bird photos under the theme.

For more:

Meet the bird with a half-moon crest on its head

Melody of Birds: Beautiful birds and fantastic flowers

Melody of Birds: Cooling down in summer

(If you want to contribute and have specific expertise, please contact us at nature@cgtn.com.)