Yellow Lichen probably Xanthoria parientina.

It was difficult to decide which blip to use today as I had some good ones of a very large bumblebee as well as a ladybird feeding on wild thyme.

In the end I chose this yellow lichen which is probably Xanthoria parientina. It comes in several shades of yellow and orange; this one was growing on the felt roof of the nesting box of the chicken house.