Clark's nutcracker
"Pinus ponderosa" needles are the only known food of the caterpillars of the gelechiid moth "Chionodes retiniella". Blue stain fungus, "Grosmannia clavigera", is introduced in sapwood of "P. ponderosa" from the galleries of all species in the genus "Dendroctonus" (mountain pine beetle), which has caused much damage. Western pine and other beetles can be found consuming the bark. The seeds are eaten by squirrels, chipmunks, quail, grouse, and Clark's nutcracker, while mule deer browse the seedlings.