They do seem to like hitching rides.
funny. I did a ride up and back on the capital crescent yesterday PM. I'm getting used to hitting a few in mid-flight. I stopped to meet a friend for some tea / ice tea at Quartermaine's at Bethesda Ave or whatever the CCT dumps onto. When I went back to my bike, I had a nice cicada resting right on my front derailleur. I guess it liked cheap Shimano parts.