Though the tag nontraditional miko exists, lots of works intended for the proper tag are tagged miko instead. Even experienced users make this mistake.
Some examples:
post #8411392
post #8402824
post #8403842
post #8401267
post #8400452
post #8398296
post #8397426
post #8395472
post #8384895
post #8378997
post #8358105
post #8354153
post #8348016
post #8345793
post #8342060
post #8342067
post #7228611
post #8281695
And there are thousands of more works like these.