Okay, so im leveling up smithing by making iron daggers right now so im going from blacksmith to blacksmith every 48 hours and every time I go to Dawnstar (every 48 hours) and dragon appears.. I kill it every time and it seems to be a different one when ever they appear. I have 25 dragon bones and 21 scales after farming for a hour and I have something like 10 souls..? This is a glitch, or meant to be? Im lost.....(its not a problem btw I kinda like it)

Is this a complaint? I can't tell.

...dragons spawn like this normally in outside cells after a certain time has passed
they have since vanilla release (barring glitches that turn off their spawning)