Turkey tail is quite common as a bracket fungus. The fruiting bodies can be found at any time of year, and are long lasting when they develop. They grow in clusters which are small, fan shaped with concentric bands of different colours, on dead or dying wood. Often, as here, on stumps, or on fallen branches.
These had a coating of frost, on a stump on one of the gardens neighbouring the one with the witch hazels (the posts directly before and and after this one).