So I messed up

Soooo....Yea I traded or lost all the alters for the legendary birds. There is not much as to what happens online if you do this. I have seen some say to go to pc to buy another one but it seem like I dont have that option. It has not spawned again and I looked it all my chest. All.of. them. Even random ones it the wild. I did make some room of a dream island...I hope I didn't toss it there...its not in lost and found. Any help would be 10000/10 thank you!