Hi, hmmm I didn't make any alpha ghosts. I'm not sure what happened. I made the ghosts only give ectoplasm so even if somehow an alpha was possible it should only give ectoplasm

It was Alpha, tougher to kill, shining stars around it too for some reason and the dead body said it was Alpha tool. Not sure why it happened then since it wasn't added.

Next time when this bug occurs I make sure to make a screenshot, was caught off guard this time.

Hi, I believe you. It's just so weird. Are there even alpha terror birds in the game? It's sort of spooky. I'll have to check out how alpha's are made and see if I somehow made them happen accidently.

There aren't any Alpha Terror birds in game and yes, fits the Halloween theme quite well strangely enough. Maybe it didn't work well together with a different mod that made it happen like that.

Due to the sparkles, I remember those from a different mod called "Rare Sightings" or something. It'll randomly spawn a vanilla creature in a very rare color and a boost in level for the player to tame up.

I don't always have my HUD on so could've missed that the spawn happened and that it may have glitched with the Halloween mod once after playing with both for as long as I can remember.

If that isn't the case, I have no idea. Having a screenshot of it would've been great though, I regret being caught off guard but I know anyone would've.