The animal kingdom is rife with colors and patterns that are superficially worn and can serve a number of purposes. These visible arrangements can also, in some cases, change according to factors such as age or the season.
A merlin preened on a branch of a skeletal tree, contorting its body into all sorts of interesting positions as it tidied and fluffed its feathers with its beak and talons. Far away, in the distant overcast sky, the chatter of two crows sounded. Two black spots flew into view. And they saw the merlin.
A large shape was on top of the otherwise thin and angular branch and looked slightly out of place. But it was not out of place at all. It was an owl.