The blue eggs of an American robin in New Jersey, USA
© Mira/Alam
No egg dye required. Easter
The American robin doesn't go out of its way to hide its colourful eggs, nor does it need paint to celebrate Easter! Thanks to a process in the mother's blood, her eggs - which she can lay up to three times each year - are always this lovely shade of blue. There’s even a name for this natural hue, 'robin's egg blue'.
The American robin isn’t the only bird that produces coloured eggs. The emu (greenish-blue), great tinamou (turquoise), peregrine falcon (mottled brown), and red-winged blackbird (light blue with black spots) are just some of the others that can produce eggs worthy of an Easter egg hunt.
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Western box turtle
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Sumatran rhinoceros (Dicerorhinus sumatrensis) female eating leaves, Way Kambas National Park, Sumatra, Indonesia
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