Our forest is so stressed right now. I have taken to wearing a wide brimmed hat when I go outdoors to keep the caterpillars from dropping into my hair. Yes, they were doing that and I'd itch for the rest of the day just thinking about it!
Now the oak trees are showing stress signs too. Although this fungus is beautiful to look at and watch it grow in size, it is a sign of an illness. (Or so I understand.)