Where does Galarian Articuno go if you fly away from it?

Question

I found Galarian Articuno and tracked it down, and then crashed into it to trigger the battle, but then I realized I was out of ultra balls so I flew to a Pokemon center without catching Articuno, and now I can't find it! Did I cause a glitch or is it hiding from me?

Answer 1

You'll have to leave the area that Galarian Articuno, Moltres, or Zapdos is found in, and then return to spot them again.

I can confirm this is also true if you run away from personal experience.

Source