Shipping. Shipping everywhere.
you will go to the paper towns and you will never come back
@crowlover: Were you able to see the preview clip? In it they seem to imply the ponies know little about Dragons in general, and they explicitly say that Dragons (at least in Equestria) are rare. So yeah, I really can't imagine that they would know about migratory patterns either.

The dragons are all migrating to the north due to the events of
Pokemon The Movie 2000.
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
Well, if we assume that the dragon migration happens before the preview clip, it would be kinda hard for them to miss it. It could be large enough that Spike has the opportunity to join it when it passes the town.
@dmystia. moar ponies is alwyas awesme
I believe in Christianity as I believe that the sun has risen, not only because I see it, but because by it I see everything else.
C. S. Lewis
I wonder if the 100 year nap thing is actually true? Maybe it's a bit of Pony folklore since they don't really know about dragon sleeping habits.
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".
If all dragons snore like the one in Dragonshy then dragon sleeping habits would be the easiest part of dragon lore to know.
What is Spike holding? Some kind of Zap Pear?
If there is anything that you are alone in thinking, it's "thinking that you're alone in thinking of your theories".