The 20-year-old marksman heads out for his third loan spell since arriving at Boro last summer from Bury. 

The Lancastrian had a spell at Wrexham late last year before returning to Bury for the second half of the season, scoring eight goals from 16 starts for the then-League One Shakers. 

The player will look to continue his development in the third tier at Valley Parade, where he joins up with a Bradford City side under the guidance of new head coach Michael Collins. 

Since arriving at Boro, Miller has scored 13 goals in the Under-23s, the majority coming during the first half of last season, and he also made his first team debut at Aston Villa last September in the Carabao Cup.