1. Migration. 2. Nest-building.
If you gave the same pile of materials to a robin and to me, I think the robin might do a better job of building a nest with it. I base this conjecture upon robin nests I've seen around my house.
Brain-machine interface with weak AI (translation) could drastically alter the intelligence debate.
I've never seen a human fly and well over 99% of my work is performed in the x and y axis. When communicating directions, I'm rarely concerned about z. Simple graphing tools (e.g., paper and pen) can be used to illustrate my point further.