That sounds like a pidove to me, anonymous.
They’re generally harmless except during mating season.
Bill. —LH
Edit: Oh, all right.
Anonymous, I admit I’m not entirely certain what you were seeing and can’t be completely certain unless I see a picture of it myself. However, I can tell you that there are a number of things it may be, including legendary pokémon. Generally speaking, however, pokémon are harmless unless you pose a threat to them or wander into their territories—the latter especially if you do so during mating season. For the average Unovan, the native bird populations are actually quite harmless.