Turkey tail is a common bracket fungus growing on tree trunks and fallen wood. It appears in long-lasting clusters, with each “tail” a little less than an inch across.
I broke off one of the fruiting bodies in what proved to be an unsuccessful attempt at getting a spore print. One picture of fruiting bodies on a tree; then of both upper and lower surfaces.
The spores emerge from the underside, from pores rather than gills.