Pretty in Red

It seems like the leaves this year have been mostly yellow tones so when I saw this beautiful red display on the weekend, I just had to stop what I was doing and take a photo.

 

But then I had to ask myself, why do some leaves turn yellow and some turn red or orange?  Is it because we had such a dry and warm summer? Of course, I immediately had to go to my beloved Google to look up the answer.  Thanks to "Science Made Simple", I now know why leaves change colour and you can too, all you have to do is click here.  And here if you'd like to read a bit more from the USDA Forest Services' point of view.