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Hashtag
#ChangingoftheLeaves
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An American Robin and a Cardinal
Three maple leaves of various autumn colours.
The red of an #AmericanRobin and #Cardinal is an example of the reflection of #carotenoid pigments.
Carotenoid pigments are also revealed come autumn after the cooler temperatures cut off the supply of #green reflecting chlorophyll in leaves. This process gives us the #ChangingoftheLeaves.
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