The northern lights

I went to Labrador - didn't see the northern lights but I heard a lot about them. The locals all had interesting opinions about when they come out. Here are a few of the highlights:

• "You can only see them in the summertime, I see them all the time then."
• "It needs to be a very chilly night"
• "Its usually above a river, something in the moisture makes them appear"
• "They only come out in the winter, and never in the summer"
• "You need to walk outside at night and whistle then they will come out"

Note that when people said these things they were stating them as facts, not theories. They truly believed it.

(photo from emagine-travel.co.uk)