Referring to the orange lichen pictured here. Observed on cement wall near Botany greenhouse on UW campus.
This bush has completely red leaves that are very thin and are alternately placed. It is a very common plant for this area and is only about 4 meters tall.
This Hawk sat perched midway up on what I believe was a Red Alder (Alnus rubra). Although there were about 20 of us standing below it within about 20ft of it, it remained sitting on the branch, though it did switch branches. It was not uncomfortable with the presence of humans.
Must be a common type of squirrel, see these all over the city. Apparently these guys are from the east and mideastern U.S. They build a nest that may look like a bird's nest. The ones on our campus dig into garbage cans and berries during the spring.