Revealing mistake: Just after we see the inmate get stabbed there is a shot during the quick montage of one inmate holding the door, while his cellmate climbs up onto the bed for a better look at what is going on. In this very quick shot, the cell door moves despite the fact A wing is on lock down. (00:07:15)
By the Skin and the Teeth - S1-E15
Continuity mistake: When lifting the grate for the first time, the amount of snow on it changes from a light dusting to a considerable amount more. (00:25:00)
By the Skin and the Teeth - S1-E15
Continuity mistake: When stood on the grate, the amount of snow on people's hats is constantly changing drastically. (00:12:25)
By the Skin and the Teeth - S1-E15
Continuity mistake: C-Note makes a comment about some cons taking a stroll through the yard. When he does, his grip on the shovel changes instantly. Note the handle. (00:11:35)
Odd Man Out - S1-E12
Continuity mistake: When Belleck is offering Tweener the burger, it goes from wrapped to unwrapped instantly. (00:31:20)
Answer: Don Self actually worked with Whistler before he died. And Whistler with the bird book actually knew where Scylla was.