Sunshine and Autumn colours

We are enjoying the September weather for walks in the countryside. We have noticed the trees gradually changing colour as they prepare for winter dormancy. As the trees begin to shutdown the green chlorophyll which is important for making food in the growing season gradually disappears from the leaves and we get to see the yellow, orange and red colours more prominently which is what gives us the "Autumn colours".

You can see it starting to happen here in this Acer on our patio: