I am new to D&D. I created a druid with an animal companion, a hawk. I have looked through the compendium and forums, but can't find an answer to this question: The hawk has darkvision. Does that allow me to see through its eyes in the dark? If not, does the hawk communicate to me anything about what it sees? If neither of those are the case, what would I use my hawk's darkvision for typically? What is the point of the power?